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
2024-04-21 07:53:01 S 15 06 43.781 +25 51 21.20 V C57
2024-04-21 07:53:01 s 1 -18723.161 0 +193683.16 0.318 C57
2024-04-21 08:13:01 S 15 06 42.562 +25 51 32.72 V C57
2024-04-21 08:13:01 s 1 -19810.185 0 +192520.39 0.411 C57
2024-04-21 08:33:01 S 15 06 41.374 +25 51 44.46 V C57
2024-04-21 08:33:01 s 1 -20896.149 0 +191347.60 0.727 C57
2024-04-21 08:53:01 S 15 06 40.001 +25 51 54.04 V C57
2024-04-21 08:53:01 s 1 -21980.995 0 +190164.81 0.218 C57
2024-04-21 09:13:01 S 15 06 38.741 +25 52 04.84 V C57
2024-04-21 09:13:01 s 1 -23064.662 0 +188972.05 0.836 C57
2024-04-21 09:33:01 S 15 06 37.459 +25 52 14.99 V C57
2024-04-21 09:33:01 s 1 -24147.070 0 +187769.18 0.44 C57
2024-04-21 09:53:01 S 15 06 36.163 +25 52 27.37 V C57
2024-04-21 09:53:01 s 1 -25228.156 0 +186556.24 0.979 C57
2024-04-21 10:13:01 S 15 06 35.009 +25 52 38.14 V C57
2024-04-21 10:13:01 s 1 -26307.857 0 +185333.25 0.406 C57
2024-04-21 10:33:01 S 15 06 33.677 +25 52 48.58 V C57
2024-04-21 10:33:01 s 1 -27386.089 0 +184100.08 0.574 C57
2024-04-21 10:53:01 S 15 06 32.314 +25 53 00.78 V C57
2024-04-21 10:53:01 s 1 -28462.787 0 +182856.77 0.431 C57
2024-04-21 11:13:01 S 15 06 31.253 +25 53 10.25 V C57
2024-04-21 11:13:01 s 1 -29537.885 0 +181603.33 0.928 C57
2024-04-21 11:33:01 S 15 06 29.976 +25 53 19.28 V C57
2024-04-21 11:33:01 s 1 -30611.293 0 +180339.65 0.913 C57
2024-04-21 11:53:01 S 15 06 28.711 +25 53 32.89 V C57
2024-04-21 11:53:01 s 1 -31682.943 0 +179065.76 0.335 C57
2024-04-21 12:13:01 S 15 06 27.252 +25 53 43.12 V C57
2024-04-21 12:13:01 s 1 -32752.767 0 +177781.68 0.14 C57
2024-04-21 12:33:01 S 15 06 26.215 +25 53 55.97 V C57
2024-04-21 12:33:01 s 1 -33820.670 0 +176487.30 0.172 C57
2024-04-21 15:53:01 S 15 06 13.142 +25 55 45.01 V C57
2024-04-21 15:53:01 s 1 -44376.453 0 +162975.68 0.183 C57
2024-04-21 16:13:01 S 15 06 12.074 +25 55 55.52 V C57
2024-04-21 16:13:01 s 1 -45417.811 0 +161567.44 0.121 C57
2024-04-21 16:33:01 S 15 06 10.663 +25 56 08.38 V C57
2024-04-21 16:33:01 s 1 -46456.204 0 +160148.71 0.164 C57
2024-04-21 16:53:01 S 15 06 09.521 +25 56 20.11 V C57
2024-04-21 16:53:01 s 1 -47491.550 0 +158719.55 0.251 C57
2024-04-21 17:13:01 S 15 06 08.004 +25 56 32.60 V C57
2024-04-21 17:13:01 s 1 -48523.768 0 +157279.99 0.326 C57
2024-04-21 17:33:01 S 15 06 06.881 +25 56 40.24 V C57
2024-04-21 17:33:01 s 1 -49552.728 0 +155829.92 0.204 C57
2024-04-21 17:53:01 S 15 06 05.882 +25 56 51.72 V C57
2024-04-21 17:53:01 s 1 -50578.345 0 +154369.40 0.825 C57
2024-04-21 18:13:01 S 15 06 04.526 +25 57 05.36 V C57
2024-04-21 18:13:01 s 1 -51600.537 0 +152898.47 0.129 C57
2024-04-21 18:33:01 S 15 06 03.142 +25 57 12.82 V C57
2024-04-21 18:33:01 s 1 -52619.163 0 +151417.03 0.927 C57
2024-04-21 18:53:01 S 15 06 01.802 +25 57 26.17 V C57
2024-04-21 18:53:01 s 1 -53634.138 0 +149925.12 0.157 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)