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
2022-02-08 22:33:52 s 1 -202003.71 8 +161099.51 8170.0 C57
2022-02-08 22:43:52 S 10 51 29.530 +24 34 46.24 V C57
2022-02-08 22:43:52 s 1 -202068.83 3 +160408.79 3220.0 C57
2022-02-08 22:53:52 S 10 51 28.730 +24 35 02.36 V C57
2022-02-08 22:53:52 s 1 -202132.55 5 +159716.96 1720.0 C57
2022-02-08 23:03:52 S 10 51 27.912 +24 35 18.31 V C57
2022-02-08 23:03:52 s 1 -202194.87 8 +159024.02 3640.0 C57
2022-02-08 23:13:52 S 10 51 27.070 +24 35 33.94 V C57
2022-02-08 23:13:52 s 1 -202255.79 7 +158329.98 8960.0 C57
2022-02-08 23:23:52 S 10 51 26.270 +24 35 49.45 V C57
2022-02-08 23:23:52 s 1 -202315.30 6 +157634.82 7640.0 C57
2022-02-08 23:33:52 S 10 51 25.397 +24 36 05.62 V C57
2022-02-08 23:33:52 s 1 -202373.39 9 +156938.56 9670.0 C57
2022-02-08 23:43:52 S 10 51 24.547 +24 36 21.42 V C57
2022-02-08 23:43:52 s 1 -202430.06 9 +156241.18 5020.0 C57
2022-02-08 23:53:52 S 10 51 23.726 +24 36 37.44 V C57
2022-02-08 23:53:52 s 1 -202485.31 0 +155542.70 3660.0 C57
2022-02-09 00:03:52 S 10 51 22.862 +24 36 53.24 V C57
2022-02-09 00:03:52 s 1 -202539.11 8 +154843.12 5560.0 C57
2022-02-09 00:13:52 S 10 51 22.027 +24 37 08.98 V C57
2022-02-09 00:13:52 s 1 -202591.48 4 +154142.43 700.0 C57
2022-02-09 00:23:52 S 10 51 21.154 +24 37 25.39 V C57
2022-02-09 00:23:52 s 1 -202642.40 4 +153440.63 9050.0 C57
2022-02-09 00:33:52 S 10 51 20.297 +24 37 42.13 V C57
2022-02-09 00:33:52 s 1 -202691.87 0 +152737.73 580.0 C57
2022-02-09 00:43:52 S 10 51 19.622 +24 37 57.32 V C57
2022-02-09 00:43:52 s 1 -202739.87 8 +152033.73 5280.0 C57
2022-02-09 00:53:52 S 10 51 18.710 +24 38 12.52 V C57
2022-02-09 00:53:52 s 1 -202786.42 0 +151328.62 3100.0 C57
2022-02-09 01:03:52 S 10 51 17.839 +24 38 27.71 V C57
2022-02-09 01:03:52 s 1 -202831.49 0 +150622.41 4020.0 C57
2022-02-09 01:13:52 S 10 51 16.968 +24 38 43.87 V C57
2022-02-09 01:13:52 s 1 -202875.08 2 +149915.10 8020.0 C57
2022-02-09 01:23:52 S 10 51 16.166 +24 39 00.54 V C57
2022-02-09 01:23:52 s 1 -202917.19 0 +149206.69 5070.0 C57
2022-02-09 01:33:52 S 10 51 15.307 +24 39 16.09 V C57
2022-02-09 01:33:52 s 1 -202957.80 7 +148497.17 5130.0 C57
2022-02-09 01:43:52 S 10 51 14.470 +24 39 31.82 V C57
2022-02-09 01:43:52 s 1 -202996.92 6 +147786.56 8190.0 C57
2022-02-09 01:53:52 S 10 51 13.658 +24 39 48.28 V C57
2022-02-09 01:53:52 s 1 -203034.54 2 +147074.85 4210.0 C57
2022-02-09 02:03:52 S 10 51 12.770 +24 40 03.50 V C57
2022-02-09 02:03:52 s 1 -203070.64 8 +146362.04 3170.0 C57
2022-02-09 02:13:52 S 10 51 12.029 +24 40 19.31 V C57
2022-02-09 02:13:52 s 1 -203105.23 7 +145648.14 5030.0 C57
2022-02-09 02:23:52 S 10 51 11.153 +24 40 35.04 V C57
2022-02-09 02:23:52 s 1 -203138.30 3 +144933.14 9780.0 C57
2022-02-09 02:33:52 S 10 51 10.298 +24 40 51.35 V C57
2022-02-09 02:33:52 s 1 -203169.83 8 +144217.04 7370.0 C57
2022-02-09 02:43:52 S 10 51 09.442 +24 41 06.40 V 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)