3103 Eger (1982 BB)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3541833241 ± 2.00e+00
Semi-major axis (a)1.4039472551 AU ± 3.00e+00
Inclination (i)20.93071887° ± 4.00e+00
Long. of Asc. Node (Ω)129.73173744° ± 5.00e+00
Arg. of Perihelion (ω)254.10494834° ± 6.00e+00
Mean Anomaly (M)181.12184640° ± 8.33e-05
Mean Motion (n)0.5924969077°/day ± 1.90e+00
Perihelion dist (q)0.90669255 AU ± 3.41e+00
Aphelion dist (Q)1.90120196 AU ± 4.94e+00
Orbital Period1.66351296 yr ± 5.33e+00
NGA Modelr2
A24.86502687e-06 AU/d²
Physical Parameters
H (abs. magnitude)15.30
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-26
RMS Residual0.341″
Uncertainty0
Orbit TypeApollo
MOID0.078006 AU
Observations Used7901
Radar Obs Used4
Gaia Obs Used108
Oppositions14
Arc Total1982-2017
First Observation Used1982-02-02
Last Observation Used2026-04-05
Observations (11858)
Date Type RA Dec Mag Band Observatory
2022-02-18 14:13:51 S 10 34 50.858 +30 08 44.56 V C57
2022-02-18 14:13:51 s 1 +27616.506 0 +379989.29 6790.0 C57
2022-02-18 14:43:51 S 10 34 48.550 +30 09 23.08 V C57
2022-02-18 14:43:51 s 1 +26454.677 0 +380166.87 1590.0 C57
2022-02-18 14:53:51 S 10 34 47.650 +30 09 34.74 V C57
2022-02-18 14:53:51 s 1 +26067.264 0 +380224.08 6400.0 C57
2022-02-18 15:03:51 S 10 34 46.858 +30 09 45.68 V C57
2022-02-18 15:03:51 s 1 +25679.784 0 +380280.29 1150.0 C57
2022-02-18 15:13:51 S 10 34 46.130 +30 09 59.65 V C57
2022-02-18 15:13:51 s 1 +25292.238 0 +380335.51 5830.0 C57
2022-02-18 15:23:51 S 10 34 45.245 +30 10 11.42 V C57
2022-02-18 15:23:51 s 1 +24904.628 0 +380389.74 430.0 C57
2022-02-18 15:33:51 S 10 34 44.465 +30 10 23.77 V C57
2022-02-18 15:33:51 s 1 +24516.953 0 +380442.97 4950.0 C57
2022-02-18 15:43:51 S 10 34 43.692 +30 10 36.95 V C57
2022-02-18 15:43:51 s 1 +24129.216 0 +380495.22 9380.0 C57
2022-02-18 15:53:51 S 10 34 42.941 +30 10 49.12 V C57
2022-02-18 15:53:51 s 1 +23741.418 0 +380546.47 3730.0 C57
2022-02-18 16:03:51 S 10 34 42.055 +30 11 02.15 V C57
2022-02-18 16:03:51 s 1 +23353.558 0 +380596.73 7980.0 C57
2022-02-18 16:13:51 S 10 34 41.357 +30 11 15.11 V C57
2022-02-18 16:13:51 s 1 +22965.640 0 +380645.99 2140.0 C57
2022-02-18 16:23:51 S 10 34 40.534 +30 11 27.64 V C57
2022-02-18 16:23:51 s 1 +22577.662 0 +380694.27 6190.0 C57
2022-02-18 16:33:51 S 10 34 39.710 +30 11 40.34 V C57
2022-02-18 16:33:51 s 1 +22189.627 0 +380741.55 130.0 C57
2022-02-18 16:43:51 S 10 34 38.899 +30 11 53.30 V C57
2022-02-18 16:43:51 s 1 +21801.535 0 +380787.84 3960.0 C57
2022-02-18 16:53:51 S 10 34 38.126 +30 12 05.11 V C57
2022-02-18 16:53:51 s 1 +21413.388 0 +380833.14 7680.0 C57
2022-02-18 17:03:51 S 10 34 37.358 +30 12 17.03 V C57
2022-02-18 17:03:51 s 1 +21025.186 0 +380877.44 1280.0 C57
2022-02-18 17:13:51 S 10 34 36.530 +30 12 30.92 V C57
2022-02-18 17:13:51 s 1 +20636.931 0 +380920.76 4750.0 C57
2022-02-18 17:23:51 S 10 34 35.743 +30 12 42.55 V C57
2022-02-18 17:23:51 s 1 +20248.623 0 +380963.08 8090.0 C57
2022-02-18 17:33:51 S 10 34 34.932 +30 12 54.58 V C57
2022-02-18 17:33:51 s 1 +19860.263 0 +381004.42 1310.0 C57
2022-02-18 17:43:51 S 10 34 34.152 +30 13 08.69 V C57
2022-02-18 17:43:51 s 1 +19471.854 0 +381044.76 4380.0 C57
2022-02-18 17:53:51 S 10 34 33.374 +30 13 20.17 V C57
2022-02-18 17:53:51 s 1 +19083.394 0 +381084.11 7310.0 C57
2022-02-18 18:03:51 S 10 34 32.556 +30 13 32.12 V C57
2022-02-18 18:03:51 s 1 +18694.886 0 +381122.46 90.0 C57
2022-02-18 18:13:51 S 10 34 31.781 +30 13 45.62 V C57
2022-02-18 18:13:51 s 1 +18306.331 0 +381159.83 2720.0 C57
2022-02-18 18:23:51 S 10 34 30.929 +30 13 57.97 V C57
2022-02-18 18:23:51 s 1 +17917.729 0 +381196.21 5200.0 C57
2022-02-18 18:33:51 S 10 34 30.122 +30 14 09.56 V C57
2022-02-18 18:33:51 s 1 +17529.082 0 +381231.60 7520.0 C57
Radar Observations (8)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
1986-07-18 07:50:00 202602 6 Hz 2380 -1 -1
1986-07-18.326389 20260200 600 Hz 2380 251 251
1996-07-29 09:10:00 469654 5 Hz 8510 -14 -14
1996-07-29 13:00:00 133166634 10 us 8510 -14 -14
1996-07-29.381944 46965400 500 Hz 8510 253 253
1996-07-29.541667 13316663400 10000 us 8510 253 253
1996-07-30 10:50:00 410012.2 5 Hz 8510 -14 -14
1996-07-30.451389 41001220 500 Hz 8510 253 253
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)