In the table below you will find the records of stratospheric balloons launched from different countries and places during 2020, which are currently available in StratoCat's database. Each row shows basic data about the launch base from which departed, date and time of the launch, and if available the duration of the mission and the site of termination or landing place of the payload.
Regarding the kind of payload or experiment transported in each balloon mission, if you click the experiment name a text will be displayed showing the name of the scientific institutions involved in that mission, a brief resume of the purpose of the experiment carried onboard as well the scientific results obtained, and other information of relevance from that particular mission. Finaly at the bottom of the window there are links to external references. In some cases, these references are available throught scientific websites or journals for free. In other cases however, the information was published on journals only accesible throught direct suscription or using the access provided by Universities or research centers.
| Launch base | Date | Flight Duration | Experiment | Payload landing place or cause of the failure |
|---|---|---|---|---|
 McMurdo | 1/6 | ~ 20 h | BLAST-TNG (Balloon-borne Large Aperture Sub-millimeter Telescope - The Next Generation) | --- No Data --- |
 Ceiba, Puerto Rico | 1/6 | 2 h | PROJECT LOON FLIGHT 110 | In the Caribbean Sea 2 miles SE of Palmas del Mar, Puerto Rico |
| Ceiba, Puerto Rico | 1/7 | 39 d | PROJECT LOON FLIGHT 090 | 50 km NW of Winnemucca, Nevada, US |
| Ceiba, Puerto Rico | 1/7 | 198 d | PROJECT LOON FLIGHT 093 | 28 km NW of Titree, Northern Territory, Australia |
| Ceiba, Puerto Rico | 1/13 | 118 d | PROJECT LOON FLIGHT 114 | 3 km W of Coëtivy Island, Seychelles Archipelago |
 Winnemucca (NV) | 1/15 | 1 h 38 m | PROJECT LOON FLIGHT 112 | 5 km SSE of Tuscarora, Nevada, US |
| Winnemucca (NV) | 1/23 | 6 h 20 m | PROJECT LOON FLIGHT 117 | 30 km W of Battle Mountain, Nevada, US |
| Ceiba, Puerto Rico | 1/25 | 256 d | PROJECT LOON FLIGHT 116 | 15 km SSE of Anmatjere, Northern Territory, Australia |
| Ceiba, Puerto Rico | 1/25 | 153 d | PROJECT LOON FLIGHT LN-129 | 6 km SE of San Lorenzo, Loreto Department, Peru |
| Ceiba, Puerto Rico | 1/25 | 176 d | PROJECT LOON FLIGHT 092 | 29 km SSW of Pmara Jutunta, Northern Territory, Australia |
| Ceiba, Puerto Rico | 1/29 | 6 d | PROJECT LOON FLIGHT 115 | 80 km N of Uruará, Pará State, Brazil |
| Ceiba, Puerto Rico | 1/29 | 228 d | PROJECT LOON FLIGHT 130 | 17 km E of De Grey, Western Australia |
| Ceiba, Puerto Rico | 1/30 | 201 d | PROJECT LOON FLIGHT 125 | 6 km NW of Ica, Peru |
| Ceiba, Puerto Rico | 1/30 | 23 d | PROJECT LOON FLIGHT 109 | 15 km SSE of Eldorado, Texas, US |
| Ceiba, Puerto Rico | 1/30 | 160 d | PROJECT LOON FLIGHT 111 | 52 km W of Winnemucca, Nevada, US |
| Winnemucca (NV) | 1/31 | 5 h 45 m | PROJECT LOON FLIGHT 118 | 40 km NW of Eureka, Nevada, US |
| Ceiba, Puerto Rico | 2/1 | 260 d | PROJECT LOON FLIGHT 132 | 11 km S of Anmatjere, Northern Territory, Australia |
| Ceiba, Puerto Rico | 2/1 | 261 d | PROJECT LOON FLIGHT 126 | 25 km SE of Anmatjere, Northern Territory, Australia |
| Ceiba, Puerto Rico | 2/2 | 259 d | PROJECT LOON FLIGHT 026 | 34 km S of Anmatjere, Northern Territory, Australia |
| Ceiba, Puerto Rico | 2/4 | 75 d | PROJECT LOON FLIGHT 131 | 17 km WSW of Lodwar, Kenya |
| Ceiba, Puerto Rico | 2/4 | 197 d | PROJECT LOON FLIGHT 136 | 4 km E of El Salvador, Zacatecas, Mexico |
| Ceiba, Puerto Rico | 2/4 | 29 d | PROJECT LOON FLIGHT 137 | 28 km S of Ica, Peru |
| Spaceport Tucson (AZ) | 2/12 | 9d 14 h 30 m | STRATOLLITE - GRYPHON XVII | Sunk in the Atlantic Ocean east of the Lesser Antilles |
| Winnemucca (NV) | 2/28 | 6 h 5 m | PROJECT LOON FLIGHT 134 | 11 km NNE of Tuscarora, Nevada, US |
| Santa Fe County (NM) | 2/29 | 8 d | THUNDERHEAD FLIGHT 0388 | 10 km SW of Buckhead Ridge, close to the Okeechobee Lake, Florida, US |
| Santa Fe County (NM) | 3/2 | 4 h | THUNDERHEAD FLIGHT 0390 | Near McIntire, Iowa, US |
| Ceiba, Puerto Rico | 3/3 | 258 d | PROJECT LOON FLIGHT 140 | 32 km SSW of Anmatjere, Northern Territory, Australia |
| Winnemucca (NV) | 3/3 | 3 h 45 m | PROJECT LOON FLIGHT 152 | 32 km SE of Carlin, Nevada, US |
| Ceiba, Puerto Rico | 3/4 | 258 d | PROJECT LOON FLIGHT 155 | 70 km S of Anmatjere, Northern Territory, Australia |
| Winnemucca (NV) | 3/5 | 3 h 40 m | PROJECT LOON FLIGHT 120 | 55 km NW of Elko, Nevada, US |
| Winnemucca (NV) | 3/13 | 18 h 20 m | PROJECT LOON FLIGHT 135 | 11 km NE of Nora Springs, Iowa, US |
| Winnemucca (NV) | 3/13 | 18 h 30 m | PROJECT LOON FLIGHT 154 | 5 km NE of Nora Springs, Iowa, US |
| Ceiba, Puerto Rico | 4/9 | 240 d | PROJECT LOON FLIGHT 139 | 45 km ESE of Mandabe, Menabe region, Madagascar |
| Ceiba, Puerto Rico | 4/10 | 40 d | PROJECT LOON FLIGHT 156 | 33 km SSW of Sonora, Texas, US |
| Ceiba, Puerto Rico | 4/13 | 177 d | PROJECT LOON FLIGHT 138 | 20 km E of Oodnadatta, South Australia |
| Ceiba, Puerto Rico | 4/14 | 39 d | PROJECT LOON FLIGHT 141 | 30 km N of Leakey, Texas, US |
| Ceiba, Puerto Rico | 4/15 | 243 d | PROJECT LOON FLIGHT 164 | 14 km SE of Anmatjere, Northern Territory, Australia |
| Ceiba, Puerto Rico | 4/15 | 242 d | PROJECT LOON FLIGHT 163 | 25 km SSE of Anmatjere, Northern Territory, Australia |
| Ceiba, Puerto Rico | 4/23 | PROJECT LOON FLIGHT LN-166 | 8 km SE of Buta, Democratic Republic of the Congo | |
| Ceiba, Puerto Rico | 4/23 | 252 d | PROJECT LOON FLIGHT 168 | 15 km SSW of Anmatjere, Northern Territory, Australia |
| Ceiba, Puerto Rico | 4/24 | 248 d | PROJECT LOON FLIGHT 165 | 46 km ESE of Laramba, Northern Territory, Australia |
| Ceiba, Puerto Rico | 4/24 | 259 d | PROJECT LOON FLIGHT 167 | 17 km S of Anmatjere, Northern Territory, Australia |
| Ceiba, Puerto Rico | 4/24 | 5 h 31 m | PROJECT LOON FLIGHT 169 | In the Caribbean Sea, 12 km N of Frederiksted, St Croix, US Virgin Islands |
| Ceiba, Puerto Rico | 4/24 | 75 h | PROJECT LOON FLIGHT 173 | 3 km Offshore Pedasí, Los Santos Province, Panama |
| Ceiba, Puerto Rico | 5/11 | 171 d | PROJECT LOON FLIGHT 175 | Ditched in the Indian Ocean inside Gaafu Dhaalu Atoll, Maldives Islands |
| Ceiba, Puerto Rico | 5/21 | 214 d | PROJECT LOON FLIGHT 170 | Ditched in the Indian Ocean in a point located 8 km SW of Omadhoo Island, Alif Dhaal Atoll, Maldives |
| Ceiba, Puerto Rico | 5/22 | 207 d | PROJECT LOON FLIGHT 176 | Ditched in the Indian Ocean in a point located 890 km SE of Sri Lanka |
| Ceiba, Puerto Rico | 6/2 | 169 d | PROJECT LOON FLIGHT 178 | 80 km NNW of Alice Springs, Northern Territory, Australia |
| Ceiba, Puerto Rico | 6/5 | 226 d | PROJECT LOON FLIGHT 180 | Near Antongopahitra, Sambava Region, Madagascar |
| Ceiba, Puerto Rico | 6/5 | 230 d | PROJECT LOON FLIGHT 177 | 25 km NE of Santa Cruz dos Milagres, Piauí, Brazil |
| Winnemucca (NV) | 6/5 | 60 d | PROJECT LOON FLIGHT 186 | Ditched in the Indian Ocean 480 km East of Maldives |
| Ceiba, Puerto Rico | 6/6 | 192 d | PROJECT LOON FLIGHT 181 | Ditched in the Indian Ocean in a point located 5 km E of La Digue Island, Seychelles |
| Winnemucca (NV) | 6/8 | 262 d | PROJECT LOON FLIGHT 190 | 30 km SE of Itaqui, Rio Grande do Sul, Brazil |
| Winnemucca (NV) | 6/9 | 20 d | PROJECT LOON FLIGHT 174 | 25 km SSW of Pmara Jutunta, Northern Territory, Australia |
| Winnemucca (NV) | 6/9 | 28 h | PROJECT LOON FLIGHT 151 | In Mine Bridger, Points of Rock, Wyoming, US |
| Winnemucca (NV) | 6/9 | 176 d | PROJECT LOON FLIGHT 185 | 22 km S of Anmatjere, Northern Territory, Australia |
| Winnemucca (NV) | 6/9 | 223 d | PROJECT LOON FLIGHT 179 | Ditched in the Indian Ocean 3 km E of Petite-Terre Island, Mayotte Archipelago |
| Winnemucca (NV) | 6/10 | 226 d | PROJECT LOON FLIGHT 172 | 9 km NE of Molteno, Eastern Cape Province, South Africa |
| Winnemucca (NV) | 6/12 | 229 d | PROJECT LOON FLIGHT 187 | 32 km N of Santa Filomena, Piauí, Brazil |
| Winnemucca (NV) | 6/12 | 330 d | PROJECT LOON FLIGHT 191 | Impact on the Indian Ocean, 620 km SE of Rodrigues Island, Mauritius |
| Winnemucca (NV) | 6/12 | 221 d | PROJECT LOON FLIGHT 193 | Ditched in the Indian Ocean 12 km S of Mayotte Archipelago |
| Winnemucca (NV) | 6/12 | 171 d | PROJECT LOON FLIGHT 184 | Ditched in the Indian Ocean 13 km SE of Kinbidhoo, Thaa Atoll, Maldives Islands |
| Winnemucca (NV) | 6/12 | 227 d | PROJECT LOON FLIGHT 189 | 25 km NE of Santa Cruz dos Milagres, Piauí, Brazil |
| Ceiba, Puerto Rico | 6/13 | 36 h | PROJECT LOON FLIGHT 196 | 2 km SW of Stubbs, Saint Vincent |
| Ceiba, Puerto Rico | 6/13 | 237 d | PROJECT LOON FLIGHT 192 | 10 km SSE of Santa Cruz dos Milagres, Piauí, Brazil |
| Ceiba, Puerto Rico | 6/15 | 265 d | PROJECT LOON FLIGHT 197 | 22 km S of Anmatjere, Northern Territory, Australia |
| Ceiba, Puerto Rico | 6/16 | 256 d | PROJECT LOON FLIGHT 199 | 70 km S of Aus, ?Karas Region, Namibia |
| Ceiba, Puerto Rico | 6/16 | 187 d | PROJECT LOON FLIGHT 195 | 20 km WSW of São Miguel do Tapuio, Piauí, Brazil |
| Ceiba, Puerto Rico | 6/16 | 335 d | PROJECT LOON FLIGHT 206 | 70 km SE of Laramba, Northern Territory, Australia |
| Ceiba, Puerto Rico | 6/16 | 223 d | PROJECT LOON FLIGHT 128 | 45 km SSW of Puerto Gaitan, Departamento del Meta, Colombia |
| Ceiba, Puerto Rico | 6/16 | 61 h | PROJECT LOON FLIGHT 205 | In the Pacific Ocean 3 Km S of Cébaco Island, Veraguas Province, Panama |
| Winnemucca (NV) | 6/17 | 216 d | PROJECT LOON FLIGHT 194 | 47 km W of Bealanana, Sofia Region, Madagascar |
| Winnemucca (NV) | 6/17 | 225 d | PROJECT LOON FLIGHT 204 | 4 km S of Broughton, Eastern Cape Province, South Africa |
| Winnemucca (NV) | 6/17 | 206 d | PROJECT LOON FLIGHT 202 | 30 km W of Mangataboahangy, Amoron'i Mania Region, Madagascar |
| Winnemucca (NV) | 6/19 | 257 d | PROJECT LOON FLIGHT 200 | 27 km SSW of Anmatjere, Northern Territory, Australia |
| Winnemucca (NV) | 6/19 | 227 d | PROJECT LOON FLIGHT 215 | 36 km N of Creporizinho, Para State, Brazil |
| Winnemucca (NV) | 6/19 | 254 d | PROJECT LOON FLIGHT LN-214 | 4 km N of Mateiros, Tocantins, Brazil |
| Winnemucca (NV) | 6/19 | 225 d | PROJECT LOON FLIGHT LN-201 | 36 km NNE of Jacareacanga, Para state, Brazil |
| Winnemucca (NV) | 6/19 | 144 d | PROJECT LOON FLIGHT 203 | Ditched in the Indian Ocean 6 km S of Vaadhoo Atoll, Maldives Islands |
| White Sands (NM) | 6/21 | --- | CST-100 STARLINER PARACHUTE SYSTEM TEST | White Sands Missile Range, New Mexico, US |
| Winnemucca (NV) | 6/23 | 78 d | PROJECT LOON FLIGHT 212 | 19 km NE of Andilamena, Alaotra-Mangoro Region, Madagascar |
| Winnemucca (NV) | 6/23 | 109 d | PROJECT LOON FLIGHT 213 | 24 km WNW of Ambanja, Madagascar |
| Ceiba, Puerto Rico | 6/24 | 190 d | PROJECT LOON FLIGHT 208 | 15 km NW of Santiago, Morona Santiago Province, Ecuador |
| Ceiba, Puerto Rico | 6/25 | 140 d | PROJECT LOON FLIGHT 159 | 50 km S of Calamar, Estado Guaviare, Colombia |
| Ceiba, Puerto Rico | 6/25 | 213 d | PROJECT LOON FLIGHT 127 | 42 km SW of Puerto Gaitan, Departamento del Meta, Colombia |
| Ceiba, Puerto Rico | 6/25 | 234 d | PROJECT LOON FLIGHT 207 | 91 km N of Alice Springs, Northern Territory, Australia |
| Ceiba, Puerto Rico | 6/25 | 190 d | PROJECT LOON FLIGHT 209 | 26 km S of Anmatjere, Northern Territory, Australia |
| Ceiba, Puerto Rico | 6/26 | 86 d | PROJECT LOON FLIGHT 225 | 50 KM NW of Maloko, Department of Cuvette, Republic of Congo |
| Ceiba, Puerto Rico | 6/26 | 29 d | PROJECT LOON FLIGHT 171 | 14 km WSW of Magado, Meru County, Kenya |
| Ceiba, Puerto Rico | 6/26 | 116 d | PROJECT LOON FLIGHT 210 | 35 km SE of Antanimieva, Morombe District, Madagascar |
| Winnemucca (NV) | 6/26 | 205 d | PROJECT LOON FLIGHT 220 | 11 km NW of Ankisatra, Melaky Region, Madagascar |
| Winnemucca (NV) | 6/26 | 160 d | PROJECT LOON FLIGHT 217 | 14 km ESE of Taylor Creek Rest Area, Northern Territory, Australia |
| Winnemucca (NV) | 6/26 | 133 d | PROJECT LOON FLIGHT 218 | In the Ifaty Forest, Atsimo-Andrefana region, Madagascar |
| Winnemucca (NV) | 6/26 | 96 d | PROJECT LOON FLIGHT 219 | Ditched in the Indian Ocean, 900 kms NW of Cape Range, Australia |
| Ceiba, Puerto Rico | 6/28 | 161 d | PROJECT LOON FLIGHT 211 | Ditched in the Indian Ocean 4 km E of Maadheli, Dhaalu Atoll, Maldives Islands |
| Ceiba, Puerto Rico | 6/28 | 23 h 37 m | PROJECT LOON FLIGHT 224 | In the Caribbean sea 90 km south of Puerto Rico |
| Gila Bend Muni (AZ) | 6/29 | 9 h | RAVEN AEROSTAR FLIGHT 0409 | Last known position SE of Prescott, Arizona, US |
| Winnemucca (NV) | 6/30 | 127 d | PROJECT LOON FLIGHT 227 | 18 km SSW of Anmatjere, Northern Territory, Australia |
| Gila Bend Muni (AZ) | 6/30 | 12 h 30 m | RAVEN AEROSTAR FLIGHT 0410 | Near Cox, Arizona, US |
| Gila Bend Muni (AZ) | 6/30 | 7 h | RAVEN AEROSTAR FLIGHT 0411 | Last known position New Water Mountains Wilderness Area, Arizona, US |
| Raven campus, Baltic (SD) | 7/2 | 6 h | RAVEN AEROSTAR FLIGHT 02 | Near Carthage, South Dakota, US |
| Raven campus, Baltic (SD) | 7/2 | 7 h 50 m | RAVEN AEROSTAR FLIGHT 01 | Near Olivia, South Dakota, US |
| Raven campus, Baltic (SD) | 7/2 | 59 d | THUNDERHEAD FLIGHT 0412 | E of Duncan, Oklahoma, US |
| Raven campus, Baltic (SD) | 7/9 | 55 h | RAVEN AEROSTAR FLIGHT 01 | Near Clark, South Dakota, US |
| Winnemucca (NV) | 7/9 | 148 d | PROJECT LOON FLIGHT 226 | Impact on the Indian Ocean, 10 km E of Burunee, Thaa Atoll, Maldives Islands |
| Winnemucca (NV) | 7/9 | 137 d | PROJECT LOON FLIGHT 228 | Ditched in the Indian Ocean 500 km SE of Maldives |
| Lemitar (NM) | 7/10 | 7 h | AEROSEISMOMETER | Last known position near St. Johns, Arizona, US |
| Lemitar (NM) | 7/10 | 8 h | AEROSEISMOMETER | Last known position near St. Johns, Arizona, US |
| Roswell (NM) | 7/11 | 9 h | RAVEN AEROSTAR FLIGHT 0416 | W of Derry, New Mexico, US |
| Roswell (NM) | 7/11 | 2 h | RAVEN AEROSTAR FLIGHT 0420 | Last known position W of Roswell, New Mexico, US |
| Roswell (NM) | 7/11 | 7 h 30 m | RAVEN AEROSTAR FLIGHT 0418 | SW of Denim, New Mexico, US |
| Roswell (NM) | 7/11 | 10 h | RAVEN AEROSTAR FLIGHT 0417 | SW of Hatch, New Mexico, US |
| Roswell (NM) | 7/11 | 13 h | RAVEN AEROSTAR FLIGHT 0419 | SW of Denim, New Mexico, US |
| Roswell (NM) | 7/11 | 13 h | RAVEN AEROSTAR FLIGHT 0421 | SW of Hatch, New Mexico, US |
 Taiki | 7/14 | ~ 1 h | SUPERPRESSURE BALLOON TEST | In the Pacific Ocean, 40 km ESE of Taiki, Japan |
| Winnemucca (NV) | 7/15 | 49 d | PROJECT LOON FLIGHT 233 | 25 km NNW of Ghan, Northern Territory, Australia |
| Winnemucca (NV) | 7/15 | 168 d | PROJECT LOON FLIGHT 234 | 18 km NNE of Itampolo, Atsimo-Andrefana Region, Madagascar |
| Raven campus, Baltic (SD) | 7/16 | 16 h | RAVEN AEROSTAR FLIGHT 01 | Near Kanhawa, Iowa, US |
| Raven campus, Baltic (SD) | 7/22 | 7 h 40 m | RAVEN AEROSTAR FLIGHT 02 | Near Cherokee, Iowa, US |
| Raven campus, Baltic (SD) | 7/22 | 8 h | RAVEN AEROSTAR FLIGHT 01 | Near Emmetsburg, Iowa, US |
| Raven campus, Baltic (SD) | 7/23 | 2 h | RAVEN AEROSTAR FLIGHT 550 | Near Luverne, Minnesota, US |
| Winnemucca (NV) | 7/24 | 107 d | PROJECT LOON FLIGHT 231 | 22 km S of Anmatjere, Northern Territory, Australia |
| Winnemucca (NV) | 7/24 | 171 d | PROJECT LOON FLIGHT 232 | 24 km NNW of Anaurilandia, Mato Grosso do Sul, Brazil |
| Winnemucca (NV) | 7/24 | 58 d | PROJECT LOON FLIGHT 235 | On the Indian Ocean 23 km ESE of Cape Masoala, Sava Region, Madagascar |
| Winnemucca (NV) | 7/24 | 116 d | PROJECT LOON FLIGHT 243 | Ditched in the Atlantic Ocean, 17 km offshore Lobito, Angola |
| Winnemucca (NV) | 7/24 | 130 d | PROJECT LOON FLIGHT 244 | 51 km W of Antsibare, Madagascar |
| Winnemucca (NV) | 7/24 | 177 d | PROJECT LOON FLIGHT 248 | 25 km E of Ambalabingo, Mahajanga Province, Madagascar |
| Taiki | 7/25 | 3 h 50 m | CRYOGENIC SAMPLER | In the Pacific Ocean, 30 km SE of Taiki, Japan |
| Raven campus, Baltic (SD) | 7/27 | 14 h | RAVEN AEROSTAR FLIGHT 01 | Near Iowa Falls, Iowa, US |
| Raven campus, Baltic (SD) | 7/28 | 5 h 50 m | RAVEN AEROSTAR FLIGHT 02 | Near Ireton, Iowa, US |
| Winnemucca (NV) | 7/28 | 152 d | PROJECT LOON FLIGHT 249 | In Ankarafantsika National Park, Boeny Region, Madagascar |
| Winnemucca (NV) | 7/28 | 252 d | PROJECT LOON FLIGHT 251 | 16 km NE of Ti Tree, Northern Territory, Australia |
| Raven campus, Baltic (SD) | 7/30 | 9 d | THUNDERHEAD FLIGHT HBAL01 | Last known position over SW Nebraska, US |
| Winnemucca (NV) | 7/30 | 70 d | PROJECT LOON FLIGHT 252 | Ditched in the Indian Ocean in a point located 730 km SE of Banda Aceh, Sumatra |
| Winnemucca (NV) | 7/30 | 103 d | PROJECT LOON FLIGHT 254 | Ditched in the Indian Ocean 1.5 km N of Aride Island, Seychelles |
| Winnemucca (NV) | 8/3 | 21 d | PROJECT LOON FLIGHT 230 | 27 km NNE of Snyder, Texas, US |
| Winnemucca (NV) | 8/5 | 28 d | PROJECT LOON FLIGHT 255 | Davidson Point, Admiralty Gulf Aborigin Reserve, Western Australia |
| Winnemucca (NV) | 8/5 | 32 d | PROJECT LOON FLIGHT 256 | 17 km W of Wilora, Northern Territory, Australia |
| Winnemucca (NV) | 8/5 | 91 d | PROJECT LOON FLIGHT 253 | 8 km S of Irangi, Tana River County, Kenya |
| Winnemucca (NV) | 8/5 | 63 d | PROJECT LOON FLIGHT 257 | In the Indian Ocean 830 km E of Chagos Archipelago |
| Raven campus, Baltic (SD) | 8/6 | 31 h | THUNDERHEAD FLIGHT HBAL02 | Near Owatonna, Minnesota, US |
| Winnemucca (NV) | 8/6 | 58 d | PROJECT LOON FLIGHT 258 | 3 Km S of Kamboe Village, Marsabit County, Kenya |
| Winnemucca (NV) | 8/6 | 23 d | PROJECT LOON FLIGHT 259 | New Ireland Island, Pacific Ocean |
| Winnemucca (NV) | 8/7 | 23 d | PROJECT LOON FLIGHT 260 | New Britain Island, Pacific Ocean |
| Raven campus, Baltic (SD) | 8/11 | 10 h | RAVEN AEROSTAR FLIGHT 01 | 5 miles NW of West Union, Iowa, US |
| Winnemucca (NV) | 8/12 | 32 d | PROJECT LOON FLIGHT 262 | 12 km ESE of Kidston, Queensland, Australia |
| Raven campus, Baltic (SD) | 8/14 | 5 h 45 m | RAVEN AEROSTAR FLIGHT 02 | Near Renville, Minnesota, US |
| Raven campus, Baltic (SD) | 8/14 | 55 m | RAVEN AEROSTAR FLIGHT 02 | Balloon failure at 28.000 ft. Payload landed SW of Jasper, Minnesota, US |
| Raven campus, Baltic (SD) | 8/14 | 7 h 45 m | RAVEN AEROSTAR FLIGHT 04 | Near Westbrook, Minnesota, US |
| Raven campus, Baltic (SD) | 8/19 | 94 d | THUNDERHEAD FLIGHT HBAL01 | W of Indianapolis, Indiana, US |
| Raven campus, Baltic (SD) | 8/19 | 16 d | THUNDERHEAD | NE of Carlsbad, New Mexico, US |
| Winnemucca (NV) | 8/19 | 82 d | PROJECT LOON FLIGHT 266 | 9 km E of Pamayu, Northern Territory, Australia |
| Winnemucca (NV) | 8/19 | 169 d | PROJECT LOON FLIGHT 263 | Ditched in the Indian Ocean 780 km S of Sri Lanka |
| Winnemucca (NV) | 8/19 | 141 d | PROJECT LOON FLIGHT 264 | 20 km S of Paraiso das Aguas, Mato Grosso do Sul, Brazil |
| Winnemucca (NV) | 8/19 | 151 d | PROJECT LOON FLIGHT 265 | 22 km WSW of Alto Araguaia, Mato Grosso do Sul, Brazil |
 ESRANGE | 8/20 | --- | INFRASOUND MICROPHONES | --- No Data --- |
| ESRANGE | 8/20 | --- | INFRASOUND MICROPHONES | --- No Data --- |
| ESRANGE | 8/20 | --- | INFRASOUND MICROPHONES | --- No Data --- |
| Ceiba, Puerto Rico | 8/20 | 50 d | PROJECT LOON FLIGHT 222 | 16 km NE of Mahabo, Menabe Region, Madagascar |
| Page (AZ) | 8/20 | 3 d | STRATOLLITE - GRYPHON XVIII | Last tracked near Pia Oik, Arizona, US |
| Ceiba, Puerto Rico | 8/20 | 90 d | PROJECT LOON FLIGHT 216 | Ditched in the Indian Ocean 7.5 kms SW of Kanifushi, Lhaviyani Atoll, Maldives |
| Ceiba, Puerto Rico | 8/20 | 209 d | PROJECT LOON FLIGHT 236 | 21 km SSE of Anmatjere, Northern Territory, Australia |
| Ceiba, Puerto Rico | 8/20 | 92 d | PROJECT LOON FLIGHT 221 | Ditched inside Gaafu Dhaalu Atoll, Maldives Islands |
| Ceiba, Puerto Rico | 8/20 | 60 d | PROJECT LOON FLIGHT 237 | 8 km N of Kamboe, Marsabit County, Kenya |
| Ceiba, Puerto Rico | 8/20 | 70 d | PROJECT LOON FLIGHT 239 | 28 km WSW of Maikona, Marsabit County, Kenya |
 Dachaidan | 8/23 | + 16 h | MULTI-INSTRUMENTAL PLATFORM | --- No Data --- |
| Winnemucca (NV) | 8/24 | 2 h 45 m | PROJECT LOON FLIGHT 182 | 29 km ENE of Paradise Valley, Nevada, US |
| Ceiba, Puerto Rico | 8/25 | 61 d | PROJECT LOON FLIGHT 241 | 13 km NE of Dhobley, Lower Juba Region, Somalia |
| Tillamook (OR) | 8/26 | 2 h 15 m | PAYLOAD UNKNOWN | 3 miles NE of Jordan Creek, Oregon, US |
| Winnemucca (NV) | 8/27 | 2 h 40 m | PROJECT LOON FLIGHT 119 | 60 km E of Paradise Valley, Nevada, US |
| Winnemucca (NV) | 8/28 | 20 h | PROJECT LOON FLIGHT 143 | 32 km SW of Table Rock, Wyoming, US |
| Roswell (NM) | 8/31 | 31 h | THUNDERHEAD FLIGHT 0441 | Near Hatch, New Mexico, US |
| Roswell (NM) | 8/31 | 33 h | THUNDERHEAD FLIGHT 0439 | W of Garfield, New Mexico, US |
| Roswell (NM) | 8/31 | 15 h | THUNDERHEAD FLIGHT 0440 | 36 km NW of Carrizozo, New Mexico, US |
| Ceiba, Puerto Rico | 9/1 | 190 d | PROJECT LOON FLIGHT 250 | 2.5 km W of Broughton, Eastern Cape Province, South Africa |
| Dachaidan | 9/3 | 18 h 44 m | BAP-CAS (Balloon-Borne Astrobiology Platform) | In the Tibetan plateau at coordinates 92.48º E - 37.57º N |
| Raven campus, Baltic (SD) | 9/4 | 14 d | THUNDERHEAD FLIGHT HBAL03 | 2 km SW of Coopersburg, Lehigh County, Pennsylvania, US |
| Ceiba, Puerto Rico | 9/10 | 13 d | PROJECT LOON FLIGHT 245 | 15 km SSE of Golconda, Nevada, US |
| Ceiba, Puerto Rico | 9/10 | 102 d | PROJECT LOON FLIGHT 240 | 60 km S of Laramba, Northern Territory, Australia |
| Ceiba, Puerto Rico | 9/10 | 37 d | PROJECT LOON FLIGHT 246 | 32 km S of Alto Rio Senguer, Chubut, Argentina |
| Ceiba, Puerto Rico | 9/10 | 14 d | PROJECT LOON FLIGHT 247 | 8 km S of Escondido, Cohauila de Zaragoza, Mexico |
| Ceiba, Puerto Rico | 9/11 | 23 d | PROJECT LOON FLIGHT 242 | 1,3 km E offshore Great Inagua Island, Bermuda |
| Roswell (NM) | 9/14 | 4 d | THUNDERHEAD FLIGHT 0464 | 20 miles E of El Paso, Texas, US |
| Roswell (NM) | 9/14 | 2 d | THUNDERHEAD FLIGHT 0463 | Last known position over Cornudas Mountains, near the NM/TX border, US |
| Roswell (NM) | 9/14 | 2 d | THUNDERHEAD FLIGHT 0462 | 10 miles SW of Las Cruces, New Mexico, US |
| Roswell (NM) | 9/15 | 3 d | THUNDERHEAD FLIGHT 0459 | 15 miles SE of Lordsburg, New Mexico, US |
| Roswell (NM) | 9/15 | 2 d | THUNDERHEAD FLIGHT 0461 | In Culberson County, Texas, US |
| Winnemucca (NV) | 9/16 | 2 h 30 m | PROJECT LOON FLIGHT 144 | 44 km NNE of Valmy, Nevada, US |
| Page (AZ) | 9/19 | STRATOLLITE - GRYPHON XX | --- No Data --- | |
| White Sands (NM) | 9/19 | --- | CST-100 STARLINER PARACHUTE SYSTEM TEST | White Sands Missile Range, New Mexico, US |
| Winnemucca (NV) | 9/23 | 26 h 20 m | PROJECT LOON FLIGHT 145 | 50 km N of Medicine Bow, Wyoming, US |
| Raven campus, Baltic (SD) | 9/28 | 82 h | THUNDERHEAD | Last known position SW of Dayton, Ohio, US |
| Raven campus, Baltic (SD) | 9/28 | 8 d | THUNDERHEAD | NE of Peebles, Adamson County, Ohio, US |
| Raven campus, Baltic (SD) | 10/2 | 9 h 45 m | RAVEN AEROSTAR FLIGHT 03 | Near Manson, Iowa, US |
| Spaceport Tucson (AZ) | 10/5 | 4 h | PAYLOAD UNKNOWN | 7 km W of Amado, Santa Cruz County, Arizona, US |
| Raven campus, Baltic (SD) | 10/7 | 19 h | RAVEN AEROSTAR FLIGHT 02 | 10 miles NE of Attica, Indiana, US |
| Winnemucca (NV) | 10/7 | 5 h 20 m | PROJECT LOON FLIGHT 267 | 36 km NNE of Golconda, Nevada, US |
| Winnemucca (NV) | 10/8 | 6 h 9 m | PROJECT LOON FLIGHT 238 | 33 km NW of Halleck, Nevada, US |
| Winnemucca (NV) | 10/14 | 12 d | PROJECT LOON FLIGHT 149 | Ditched in the Caribbean Sea, 2 kms E of Wilbanks Point, Andros Island, Bahamas |
| Winnemucca (NV) | 10/14 | 34 d | PROJECT LOON FLIGHT 148 | 35 km NE of Tuscarora, Nevada, US |
| Winnemucca (NV) | 10/14 | 35 d | PROJECT LOON FLIGHT 147 | 18 km W of Rock Point, Arizona, US |
| Winnemucca (NV) | 10/14 | 7 d | PROJECT LOON FLIGHT 146 | In the Atlantic Ocean, 4 km NE of Cayo Icacos, Puerto Rico |
| Santa Fe County (NM) | 10/14 | 2 d | THUNDERHEAD FLIGHT 0467 | 40 km E of Lubbock, Texas, US |
| Santa Fe County (NM) | 10/15 | 3 h | THUNDERHEAD FLIGHT 0468 | 10 Miles SE of Vaughn, New Mexico, US |
| Santa Fe County (NM) | 10/15 | 60 d | THUNDERHEAD FLIGHT 0469 | Last known position in the Atlantic Ocean, 1000 km W of Sao Tome and Principe |
| Sisters Eagle Airport (OR) | 10/16 | ~ 4 h | CUBESAT - DSA | SE of Paulina, Oregon, US |
| Raven campus, Baltic (SD) | 10/21 | 3 h 20 m | RAVEN AEROSTAR FLIGHT 01 | Near Blooming Prairie, Minnesota, US |
| Chamberlain Muni (SD) | 10/21 | ~ 8 h | RAVEN AEROSTAR FLIGHT 0471 | E of Saint James, Minnesota, US |
| Ceiba, Puerto Rico | 10/27 | 29 d | PROJECT LOON FLIGHT 279 | Ditched in the Indian Ocean 22 km S of Vaadhoo Atoll, Maldives Islands |
| Hot Springs (SD) | 10/28 | RAVEN AEROSTAR FLIGHT 0472 | Last known position SE of Lake Oglala, South Dakota, US | |
| Ceiba, Puerto Rico | 10/28 | 98 d | PROJECT LOON FLIGHT 223 | Ditched in the Indian Ocean 11 km N of Kudalafari Island, Huvadhu Atoll, Maldives |
| Winnemucca (NV) | 10/29 | 3 h 10 m | PROJECT LOON FLIGHT 273 | 19 km SW of Valmy, Nevada, US |
| Spaceport Tucson (AZ) | 10/31 | 3 h | STRATOLLITE - GRYPHON XXI | 23 km NE of Bowie, Arizona, US |
| ESRANGE | 11/3 | ~ 4 h | EOSTRE (Experiment on Outliving microorganisms under STRatospheric Environment) | Near Pokka, Finland |
| Ceiba, Puerto Rico | 11/4 | 139 d | PROJECT LOON FLIGHT 278 | Ditched in the Indian Ocean 4 km NE of Petite-Terre Island, Mayotte Archipelago |
| Ceiba, Puerto Rico | 11/4 | 19 d | PROJECT LOON FLIGHT 282 | 23 km ESE of Anmatjere, Northern Territory, Australia |
| Ceiba, Puerto Rico | 11/4 | 59 d | PROJECT LOON FLIGHT 280 | Ditched in the Indian Ocean in a point located 1 km SW of Petite Soeur Island, Seychelles |
| Ceiba, Puerto Rico | 11/4 | 144 d | PROJECT LOON FLIGHT 284 | 25 km SSW of Anmatjere, Northern Territory, Australia |
| Chamberlain Muni (SD) | 11/4 | ~ 20 h | RAVEN AEROSTAR FLIGHT 0466 | 5 km N of Orion Town, Wisconsin, US |
| Ceiba, Puerto Rico | 11/5 | 6 d | PROJECT LOON FLIGHT 285 | 38 km SE of Zouérat, Tiris Zemmour region, Mauritania |
| Madras Muni. (OR) | 11/9 | --- | EXO-MARS HADT (High Altitude Drop Test) | --- No Data --- |
| Winnemucca (NV) | 11/12 | 28 h | PROJECT LOON FLIGHT 094 | 6 km SSE of Atkinson, Nebraska, US |
| Winnemucca (NV) | 11/12 | 5 h 10 m | PROJECT LOON FLIGHT 268 | 42 km S of Wells, Nevada, US |
| Ceiba, Puerto Rico | 11/13 | 67 d | PROJECT LOON FLIGHT 287 | Ditched in the Indian Ocean 165 km SW of Aldabra Atoll |
| Ceiba, Puerto Rico | 11/13 | 140 d | PROJECT LOON FLIGHT 286 | Ditched in the Atlantic Ocean, 42 km W of the mouth of the Olifants River, Western Cape Province, Southafrica |
| Ceiba, Puerto Rico | 11/13 | 97 d | PROJECT LOON FLIGHT 283 | Recovered from the Indian Ocean 5 km E of Mahe, Seychelles Islands |
| Ceiba, Puerto Rico | 11/13 | 53 d | PROJECT LOON FLIGHT 277 | Ditched in Indian Ocean 6 km N of Hulhumeedhoo, Addu Atoll, Maldives Islands |
| Raven campus, Baltic (SD) | 11/13 | 6 h | RAVEN AEROSTAR FLIGHT 03 | Near Spring Valley, Minnesota, US |
| Ceiba, Puerto Rico | 11/13 | 14 d | PROJECT LOON FLIGHT 288 | 8 km E of Ngoa, Haut-Uele province, Democratic Republic of Congo |
| Ceiba, Puerto Rico | 11/16 | 25 d | PROJECT LOON FLIGHT 291 | 28 km NNW of Kalombo, Lualaba Region, Democratic Republic of the Congo |
| Ceiba, Puerto Rico | 11/16 | 99 d | PROJECT LOON FLIGHT 289 | Ditched in the Indian Ocean, 8 km W of Feeali Island, Faafu Atoll, Maldives |
| Ceiba, Puerto Rico | 11/16 | 43 d | PROJECT LOON FLIGHT 290 | 22 km S of Anmatjere, Northern Territory, Australia |
| Ceiba, Puerto Rico | 11/17 | 110 d | PROJECT LOON FLIGHT 292 | Ditched in the Indian Ocean, 10 km SE of Kudahuvadhoo Island, Dhaalu Atoll, Maldives |
| Ceiba, Puerto Rico | 11/17 | 33 d | PROJECT LOON FLIGHT 294 | Ditched in the Indian Ocean in a point located 5 km E of Grande Soeur Island, Seychelles |
| Ceiba, Puerto Rico | 11/18 | 126 d | PROJECT LOON FLIGHT 298 | 18 km E of Anmatjere, Northern Territory, Australia |
| Ceiba, Puerto Rico | 11/18 | 116 d | PROJECT LOON FLIGHT 297 | 10 km SE of Molteno, Eastern Cape Province, South Africa |
| Ceiba, Puerto Rico | 11/18 | 148 d | PROJECT LOON FLIGHT 295 | In the desert, 80 km NW of Marsabit, Kenya |
| Santa Fe County (NM) | 11/18 | 2 d 15 h | RAVEN AEROSTAR FLIGHT 0474 | W of Fort Wayne, Indiana, US |
| Santa Fe County (NM) | 11/18 | 3 h 15 m | RAVEN AEROSTAR FLIGHT 0475 | NW of Santa Rosa, New Mexico, US |
| Ceiba, Puerto Rico | 11/20 | 149 d | PROJECT LOON FLIGHT 293 | 34 km SW of Perito Moreno, Santa Cruz, Argentina |
| Empire (NV) | 11/28 | 12 h | ZPM-1 (Zephyr Pathfinder Mission 1) | In southern Utah, US |
| Ceiba, Puerto Rico | 12/3 | 153 d | PROJECT LOON FLIGHT 301 | 67 km SW of Perito Moreno, Santa Cruz, Argentina |
| Ceiba, Puerto Rico | 12/3 | 97 d | PROJECT LOON FLIGHT 296 | Ditched in the Indian Ocean, 45 km N of Kolamaafushi Island, Gaafu Alif Atoll, Maldives |
| Ceiba, Puerto Rico | 12/3 | 5 d | PROJECT LOON FLIGHT 299 | 53 km E of Nuakchot, Mauritania |
| Ceiba, Puerto Rico | 12/3 | 87 d | PROJECT LOON FLIGHT 300 | Ditched in the Indian Ocean, 1000 km E of Maldives |
| Ceiba, Puerto Rico | 12/4 | 108 d | PROJECT LOON FLIGHT 302 | Ditched in the Indian Ocean, 840 km NNW of Cocos Islands |
| Cochise County Airport (AZ) | 12/7 | 4 h | RAVEN AEROSTAR FLIGHT 0477 | 6 km N of Vail, Arizona, US |
| ESRANGE | 12/8 | --- | VORTEX-DUST | --- No Data --- |
| Ceiba, Puerto Rico | 12/8 | 127 d | PROJECT LOON FLIGHT 309 | 27 km SE of Anmatjere, Northern Territory, Australia |
| Ceiba, Puerto Rico | 12/8 | 5 d | PROJECT LOON FLIGHT 304 | 41 km ENE of Nuakchot, Mauritania |
| Ceiba, Puerto Rico | 12/8 | 150 d | PROJECT LOON FLIGHT 310 | 21 km SSE of Anmatjere, Northern Territory, Australia |
| Ceiba, Puerto Rico | 12/8 | 46 d | PROJECT LOON FLIGHT 306 | 28 km SW of Castelo do Piauí, Brazil |
| Cochise County Airport (AZ) | 12/8 | 7 h | RAVEN AEROSTAR FLIGHT 0478 | 36 km W of Wilcox, Arizona, US |
| Ceiba, Puerto Rico | 12/9 | 61 d | PROJECT LOON FLIGHT 311 | Ditched in the Indian Ocean 620 km SW of Banda Aceh, Sumatra |
| Winnemucca (NV) | 12/9 | 3 h 15 m | PROJECT LOON FLIGHT 269 | 35 km WSW of Tuscarora, Nevada, US |
| Cochise County Airport (AZ) | 12/9 | 4 h | RAVEN AEROSTAR FLIGHT 480 | SE of Safford, Arizona, US |
| Cochise County Airport (AZ) | 12/9 | 1 h 30 m | RAVEN AEROSTAR FLIGHT 479 | SE of Safford, Arizona, US |
| Big Bear City (CA) | 12/9 | 34 h | RAVEN AEROSTAR FLIGHT 481 | Off limits of Mojave Trails National Monument, California, US |
| Dagget (CA) | 12/10 | 29 h 30 m | RAVEN AEROSTAR FLIGHT 482 | Near Borrego Springs, California, US |
| Santa Fe County (NM) | 12/14 | ~ 26 d | THUNDERHEAD FLIGHT 483 | Last known position over the Atlantic Ocean, 500 km NE of British Virgin Islands |
| Ceiba, Puerto Rico | 12/16 | 142 d | PROJECT LOON FLIGHT 305 | 30 km NE of Ti Tree, Northern Territory, Australia |
| Ceiba, Puerto Rico | 12/16 | 42 d | PROJECT LOON FLIGHT 315 | Ditched in the Indian Ocean 1.100 km NNE of Seychelles Islands |
| Ceiba, Puerto Rico | 12/16 | 120 d | PROJECT LOON FLIGHT 313 | In the desert, 62 km NW of Marsabit, Kenya |
| Ceiba, Puerto Rico | 12/16 | 17 d | PROJECT LOON FLIGHT 308 | 27 km NNE of Jamestown, Eastern Cape Province, South Africa |
| Ceiba, Puerto Rico | 12/18 | 11 d | PROJECT LOON FLIGHT 314 | 15 km E of Sao Joao da Serra, Piauí, Brazil |
| Ceiba, Puerto Rico | 12/18 | 120 d | PROJECT LOON FLIGHT 307 | 10 km SSE of Anmatjere, Northern Territory, Australia |
| Ceiba, Puerto Rico | 12/19 | 32 d | PROJECT LOON FLIGHT 312 | 24 km SW of Jamestown, Eastern Cape Province, South Africa |
| Ceiba, Puerto Rico | 12/19 | 35 d | PROJECT LOON FLIGHT 318 | Ditched in the Indian Ocean 8 km WSW of Medhukuburudhoo Island, Shaviyani Atoll, Maldives |
| Ceiba, Puerto Rico | 12/19 | 117 d | PROJECT LOON FLIGHT 320 | In the desert, 97 km WNW of Marsabit, Kenya |
| Ceiba, Puerto Rico | 12/19 | 125 d | PROJECT LOON FLIGHT 319 | 58 km SSE of Anmatjere, Northern Territory, Australia |
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