#didymos — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #didymos, aggregated by home.social.
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2026-08-20 13:00:00 UTC (Delta: 2026-08-13)
WHERE IS HERA?
- Barycentric speed: 23.92 km/s (+0.53 km/s)
- Rendezvous with Didymos: November 2026🪨 Relative to Didymos
- Distance (km): 1,437,586.33 km (-194,908.11 km)
- Distance (AU): 0.01 (-0.00)
- Light travel time: 0 min 4.80 s (-0.65 s)🌎 Relative to Earth
- Distance (km): 171,569,810.89 km (+5,099,037.76 km)
- Distance (AU): 1.15 (+0.03)
- Light travel time: 9 min 32.30 s (+17.01 s) -
2026-08-13 13:00:00 UTC (Delta: 2026-08-06)
WHERE IS HERA?
- Barycentric speed: 23.40 km/s (+0.51 km/s)
- Rendezvous with Didymos: November 2026🪨 Relative to Didymos
- Distance (km): 1,632,494.44 km (-203,119.62 km)
- Distance (AU): 0.01 (-0.00)
- Light travel time: 0 min 5.45 s (-0.68 s)🌎 Relative to Earth
- Distance (km): 166,470,773.14 km (+5,206,885.72 km)
- Distance (AU): 1.11 (+0.03)
- Light travel time: 9 min 15.29 s (+17.37 s) -
2026-08-06 13:00:00 UTC (Delta: 2026-07-30)
WHERE IS HERA?
- Barycentric speed: 22.89 km/s (+0.48 km/s)
- Rendezvous with Didymos: November 2026🪨 Relative to Didymos
- Distance (km): 1,835,614.06 km (-212,585.89 km)
- Distance (AU): 0.01 (-0.00)
- Light travel time: 0 min 6.12 s (-0.71 s)🌎 Relative to Earth
- Distance (km): 161,263,887.41 km (+5,136,709.04 km)
- Distance (AU): 1.08 (+0.03)
- Light travel time: 8 min 57.93 s (+17.13 s) -
2026-07-30 13:00:00 UTC (Delta: 2026-07-23)
WHERE IS HERA?
- Barycentric speed: 22.41 km/s (+0.46 km/s)
- Rendezvous with Didymos: November 2026🪨 Relative to Didymos
- Distance (km): 2,048,205.65 km (-223,148.89 km)
- Distance (AU): 0.01 (-0.00)
- Light travel time: 0 min 6.83 s (-0.74 s)🌎 Relative to Earth
- Distance (km): 156,127,190.30 km (+4,877,238.23 km)
- Distance (AU): 1.04 (+0.03)
- Light travel time: 8 min 40.80 s (+16.27 s) -
2026-07-23 13:00:00 UTC (Delta: 2026-07-16)
WHERE IS HERA?
- Barycentric speed: 21.94 km/s (+0.44 km/s)
- Rendezvous with Didymos: November 2026🪨 Relative to Didymos
- Distance (km): 2,271,354.54 km (-234,693.52 km)
- Distance (AU): 0.02 (-0.00)
- Light travel time: 0 min 7.58 s (-0.78 s)🌎 Relative to Earth
- Distance (km): 151,249,952.07 km (+4,391,718.48 km)
- Distance (AU): 1.01 (+0.03)
- Light travel time: 8 min 24.53 s (+14.65 s) -
2026-07-16 13:00:00 UTC (Delta: 2026-07-09)
WHERE IS HERA?
- Barycentric speed: 21.50 km/s (+0.42 km/s)
- Rendezvous with Didymos: November 2026🪨 Relative to Didymos
- Distance (km): 2,506,048.06 km (-247,099.50 km)
- Distance (AU): 0.02 (-0.00)
- Light travel time: 0 min 8.36 s (-0.82 s)🌎 Relative to Earth
- Distance (km): 146,858,233.59 km (+3,633,029.26 km)
- Distance (AU): 0.98 (+0.02)
- Light travel time: 8 min 9.88 s (+12.12 s) -
💁🏻♀️ TIL: 🚀💻 The #ESA’s #Hera mission successfully rebooted its #spacecraft 140 million km from #Earth after uploading new flight #software.
Engineers at #OHB in #Bremen spent 18 months testing the upgrade on a replica before sending commands to the real spacecraft. Hera is now bound for #Dimorphos, the #asteroid whose orbit was altered by #NASA’s #DART mission.
👉 https://www.universetoday.com/articles/rebooting-a-spacecraft-140-million-kilometres-from-home
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2026-07-09 13:00:00 UTC (Delta: 2026-07-02)
WHERE IS HERA?
- Barycentric speed: 21.08 km/s (+0.41 km/s)
- Rendezvous with Didymos: November 2026🪨 Relative to Didymos
- Distance (km): 2,753,147.57 km (-260,249.88 km)
- Distance (AU): 0.02 (-0.00)
- Light travel time: 0 min 9.18 s (-0.87 s)🌎 Relative to Earth
- Distance (km): 143,225,204.33 km (+2,587,642.54 km)
- Distance (AU): 0.96 (+0.02)
- Light travel time: 7 min 57.76 s (+8.63 s) -
2026-07-02 13:00:00 UTC (Delta: 2026-06-25)
WHERE IS HERA?
- Barycentric speed: 20.67 km/s (+0.39 km/s)
- Rendezvous with Didymos: November 2026🪨 Relative to Didymos
- Distance (km): 3,013,397.44 km (-274,034.93 km)
- Distance (AU): 0.02 (-0.00)
- Light travel time: 0 min 10.05 s (-0.91 s)🌎 Relative to Earth
- Distance (km): 140,637,561.79 km (+1,278,541.00 km)
- Distance (AU): 0.94 (+0.01)
- Light travel time: 7 min 49.13 s (+4.26 s) -
2026-06-25 13:00:00 UTC (Delta: 2026-06-18)
WHERE IS HERA?
- Barycentric speed: 20.28 km/s (+0.37 km/s)
- Rendezvous with Didymos: November 2026🪨 Relative to Didymos
- Distance (km): 3,287,432.38 km (-288,355.02 km)
- Distance (AU): 0.02 (-0.00)
- Light travel time: 0 min 10.97 s (-0.96 s)🌎 Relative to Earth
- Distance (km): 139,359,020.79 km (-274,397.03 km)
- Distance (AU): 0.93 (-0.00)
- Light travel time: 7 min 44.87 s (-0.92 s) -
2026-06-18 13:00:00 UTC (Delta: 2026-06-11)
WHERE IS HERA?
- Barycentric speed: 19.91 km/s (+0.35 km/s)
- Rendezvous with Didymos: November 2026🪨 Relative to Didymos
- Distance (km): 3,575,787.39 km (-303,121.98 km)
- Distance (AU): 0.02 (-0.00)
- Light travel time: 0 min 11.93 s (-1.01 s)🌎 Relative to Earth
- Distance (km): 139,633,417.82 km (-2,031,230.31 km)
- Distance (AU): 0.93 (-0.01)
- Light travel time: 7 min 45.78 s (-6.78 s) -
2026-06-11 13:00:00 UTC (Delta: 2026-06-04)
WHERE IS HERA?
- Barycentric speed: 19.56 km/s (+0.34 km/s)
- Rendezvous with Didymos: November 2026🪨 Relative to Didymos
- Distance (km): 3,878,909.37 km (-318,259.75 km)
- Distance (AU): 0.03 (-0.00)
- Light travel time: 0 min 12.94 s (-1.06 s)🌎 Relative to Earth
- Distance (km): 141,664,648.13 km (-3,898,462.36 km)
- Distance (AU): 0.95 (-0.03)
- Light travel time: 7 min 52.56 s (-13.00 s) -
2026-06-04 13:00:00 UTC (Delta: 2026-05-28)
WHERE IS HERA?
- Barycentric speed: 19.22 km/s (+0.32 km/s)
- Rendezvous with Didymos: November 2026🪨 Relative to Didymos
- Distance (km): 4,197,169.12 km (-333,704.15 km)
- Distance (AU): 0.03 (-0.00)
- Light travel time: 0 min 14.00 s (-1.11 s)🌎 Relative to Earth
- Distance (km): 145,563,110.49 km (-5,765,392.45 km)
- Distance (AU): 0.97 (-0.04)
- Light travel time: 8 min 5.56 s (-19.23 s) -
2026-05-28 13:00:00 UTC (Delta: 2026-05-21)
WHERE IS HERA?
- Barycentric speed: 18.90 km/s (+0.31 km/s)
- Rendezvous with Didymos: November 2026🪨 Relative to Didymos
- Distance (km): 4,530,865.53 km (-349,403.06 km)
- Distance (AU): 0.03 (-0.00)
- Light travel time: 0 min 15.11 s (-1.17 s)🌎 Relative to Earth
- Distance (km): 151,328,493.37 km (-7,560,724.31 km)
- Distance (AU): 1.01 (-0.05)
- Light travel time: 8 min 24.79 s (-25.22 s) -
2026-05-21 13:00:00 UTC (Delta: 2026-05-14)
WHERE IS HERA?
- Barycentric speed: 18.60 km/s (+0.29 km/s)
- Rendezvous with Didymos: November 2026🪨 Relative to Didymos
- Distance (km): 4,880,268.59 km (-365,311.69 km)
- Distance (AU): 0.03 (-0.00)
- Light travel time: 0 min 16.28 s (-1.22 s)🌎 Relative to Earth
- Distance (km): 158,889,217.68 km (-9,232,549.41 km)
- Distance (AU): 1.06 (-0.06)
- Light travel time: 8 min 50.01 s (-30.80 s) -
2026-05-14 13:00:00 UTC (Delta: 2026-05-07)
WHERE IS HERA?
- Barycentric speed: 18.31 km/s (+0.28 km/s)
- Rendezvous with Didymos: November 2026🪨 Relative to Didymos
- Distance (km): 5,245,580.27 km (-381,397.19 km)
- Distance (AU): 0.04 (-0.00)
- Light travel time: 0 min 17.50 s (-1.27 s)🌎 Relative to Earth
- Distance (km): 168,121,767.08 km (-10,722,191.25 km)
- Distance (AU): 1.12 (-0.07)
- Light travel time: 9 min 20.81 s (-35.77 s) -
2026-05-07 13:00:00 UTC (Delta: 2026-04-30)
WHERE IS HERA?
- Barycentric speed: 18.03 km/s (+0.26 km/s)
- Rendezvous with Didymos: November 2026🪨 Relative to Didymos
- Distance (km): 5,626,977.47 km (-397,633.77 km)
- Distance (AU): 0.04 (-0.00)
- Light travel time: 0 min 18.77 s (-1.33 s)🌎 Relative to Earth
- Distance (km): 178,843,958.33 km (-11,998,943.42 km)
- Distance (AU): 1.20 (-0.08)
- Light travel time: 9 min 56.58 s (-40.03 s) -
2026-04-30 13:00:00 UTC (Delta: 2026-04-23)
WHERE IS HERA?
- Barycentric speed: 17.77 km/s (+0.25 km/s)
- Rendezvous with Didymos: November 2026🪨 Relative to Didymos
- Distance (km): 6,024,611.24 km (-414,002.57 km)
- Distance (AU): 0.04 (-0.00)
- Light travel time: 0 min 20.10 s (-1.38 s)🌎 Relative to Earth
- Distance (km): 190,842,901.75 km (-13,077,637.05 km)
- Distance (AU): 1.28 (-0.09)
- Light travel time: 10 min 36.60 s (-43.62 s) -
2026-04-23 13:00:00 UTC (Delta: 2026-04-16)
WHERE IS HERA?
- Barycentric speed: 17.52 km/s (+0.24 km/s)
- Rendezvous with Didymos: November 2026🪨 Relative to Didymos
- Distance (km): 6,438,613.81 km (-430,490.68 km)
- Distance (AU): 0.04 (-0.00)
- Light travel time: 0 min 21.48 s (-1.44 s)🌎 Relative to Earth
- Distance (km): 203,920,538.80 km (-13,975,696.57 km)
- Distance (AU): 1.36 (-0.09)
- Light travel time: 11 min 20.23 s (-46.62 s) -
2026-04-16 13:00:00 UTC (Delta: 2026-04-09)
WHERE IS HERA?
- Barycentric speed: 17.28 km/s (+0.22 km/s)
- Rendezvous with Didymos: November 2026🪨 Relative to Didymos
- Distance (km): 6,869,104.49 km (-447,090.29 km)
- Distance (AU): 0.05 (-0.00)
- Light travel time: 0 min 22.91 s (-1.49 s)🌎 Relative to Earth
- Distance (km): 217,896,235.37 km (-14,686,798.30 km)
- Distance (AU): 1.46 (-0.10)
- Light travel time: 12 min 6.85 s (-48.99 s) -
2026-03-26 13:00:00 UTC (Delta: 2026-03-19)
WHERE IS HERA?
- Barycentric speed: 16.65 km/s (+0.19 km/s)
- Rendezvous with Didymos: November 2026🪨 Relative to Didymos
- Distance (km): 8,260,606.43 km (-497,541.14 km)
- Distance (AU): 0.06 (-0.00)
- Light travel time: 0 min 27.56 s (-1.66 s)🌎 Relative to Earth
- Distance (km): 263,401,478.30 km (-15,854,000.89 km)
- Distance (AU): 1.76 (-0.11)
- Light travel time: 14 min 38.64 s (-52.88 s) -
#ESA:
"
Hera auf Kurs zum Rendezvous mit ihrem Asteroiden
"
"Hera hat kürzlich das letzte von zwei Manövernum auf ihrer Reise von der Erde zu Didymos abgeschlossen. Das Manöver verbrauchte 123 kg des Hydrazin-Treibstoffs an Bord und veränderte die Geschwindigkeit der Sonde um 367 Meter pro Sekunde .."https://www.esa.int/Space_in_Member_States/Germany/Hera_auf_Kurs_zum_Rendezvous_mit_ihrem_Asteroiden
17.3.2026
#Asteroid #Didymos #Estrack #Hera #Hydrazin #Raumfahrt #Raumsonde #Software #Softwareupdate #SpaceFlight
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#Asteroid defense mission shifted the orbit of more than its target
The immediate result was that #Dimorphos’ orbital period around #Didymos, its larger parent body, was slashed by 33 minutes.
Altering moonlet’s orbit doesn’t seem like enough to safeguard Earth from civilization-ending impacts. Observational data has come in, it seems we accomplished more than that. #DART actually changed the trajectory of entire Didymos binary system, altering its orbit around the Sun.
https://arstechnica.com/science/2026/03/nasas-dart-mission-shifted-the-orbits-of-two-asteroids/ -
Direct detection of an asteroid’s heliocentric deflection - the Didymos system after DART: https://www.science.org/doi/10.1126/sciadv.aea4259 -> NASA’s #DART Mission Changed Orbit of #Asteroid #Didymos Around Sun: https://www.nasa.gov/missions/dart/nasas-dart-mission-changed-orbit-of-asteroid-didymos-around-sun/
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2026-03-05 13:00:00 UTC (Delta: 2026-02-26)
WHERE IS HERA?
- Barycentric speed: 16.13 km/s (+0.15 km/s)
- Rendezvous with Didymos: November 2026🪨 Relative to Didymos
- Distance (km): 9,808,048.18 km (-550,797.35 km)
- Distance (AU): 0.07 (-0.00)
- Light travel time: 0 min 32.72 s (-1.84 s)🌎 Relative to Earth
- Distance (km): 311,182,495.28 km (-15,831,466.25 km)
- Distance (AU): 2.08 (-0.11)
- Light travel time: 17 min 18.02 s (-52.81 s) -
2026-02-26 13:00:00 UTC (Delta: 2026-02-19)
WHERE IS HERA?
- Barycentric speed: 15.98 km/s (+0.14 km/s)
- Rendezvous with Didymos: November 2026🪨 Relative to Didymos
- Distance (km): 10,358,845.68 km (-573,656.19 km)
- Distance (AU): 0.07 (-0.00)
- Light travel time: 0 min 34.55 s (-1.91 s)🌎 Relative to Earth
- Distance (km): 327,013,961.52 km (-15,618,282.16 km)
- Distance (AU): 2.19 (-0.10)
- Light travel time: 18 min 10.83 s (-52.10 s) -
2026-02-05 13:00:00 UTC (Delta: 2026-01-29)
WHERE IS HERA?
- Barycentric speed: 15.58 km/s (+0.11 km/s)
- Rendezvous with Didymos: November 2026🪨 Relative to Didymos
- Distance (km): 12,204,813.06 km (-693,883.15 km)
- Distance (AU): 0.08 (-0.00)
- Light travel time: 0 min 40.71 s (-2.31 s)🌎 Relative to Earth
- Distance (km): 372,850,968.02 km (-14,407,632.78 km)
- Distance (AU): 2.49 (-0.10)
- Light travel time: 20 min 43.73 s (-48.06 s) -
RE: https://squeet.me/display/962c3e10-158e8e14-c957b7b6fb1818db
We await the #HeraMission arriving at #Didymos and #Dimorphos to see exactly what the #DARTMission did.
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Any useful deflection of a larger #asteroid ☄️ would require a far greater shove or need to occur decades ahead of an impending collision 💥 to have a cumulative effect. You’d need 1,000 #DARTs to get the same deflection https://www.astronomy.com/science/how-we-track-near-earth-asteroids/
Discovery 🔭
after closest approach: 69 (46.0%)
< 24 hours : 32 (21.3%)
up to 7 days : 47 (31.3%)
> one week : 2 (1.3%)
> 7 weeks : 0 (0.0%)
> one year : 0 (0.0%)
https://en.wikipedia.org/wiki/List_of_asteroid_close_approaches_to_Earth_in_2025#Dimorphos #Didymos #AsteroidThreat #AsteroidDeflection #NASA #DART
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One year after launch of #Hera the mission is running well. ESA published a recap of the mission planing, the launch, the Mars and Deimos flyby and camera and rotation control tests. #ESA #Hera #Didymos #Mars #AsteroidDefence #Dart #NASA #Ramses www.youtube.com/watch?v=dvcy...
Hera marks one year on its way...