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
2024-04-07 10:29:25 C 15 24 03.480 +22 15 31.93 V T05
2024-04-07 10:45:17 C 15 24 02.818 +22 15 44.86 V T05
2024-04-07 10:49:15 C 15 24 02.623 +22 15 47.84 V T05
2024-04-07 10:55:12 C 15 24 02.393 +22 15 52.42 V T05
2024-04-07 11:05:08 C 15 24 01.973 +22 15 59.98 V T05
2024-04-09 11:42:55 C 15 21 56.914 +22 52 13.73 V T05
2024-04-09 11:52:50 C 15 21 56.453 +22 52 20.82 V T05
2024-04-09 12:02:45 C 15 21 55.973 +22 52 28.09 V T05
2024-04-10 10:03:52 C 15 20 56.041 +23 08 29.31 X F51
2024-04-10 10:41:03 C 15 20 54.237 +23 08 56.46 X F51
2024-04-10 10:47:28 C 15 20 53.509 +23 08 59.39 V 703
2024-04-10 10:50:44 C 15 20 53.365 +23 09 02.09 V 703
2024-04-10 10:54:00 C 15 20 53.167 +23 09 03.96 V 703
2024-04-10 10:57:15 C 15 20 53.016 +23 09 06.80 V 703
2024-04-10 10:59:32 C 15 20 53.339 +23 09 09.87 X F51
2024-04-14 22:22:29 C 15 15 29.25 +24 23 14.4 X M26
2024-04-14 22:26:31 C 15 15 29.03 +24 23 17.5 X M26
2024-04-14 22:30:34 C 15 15 28.80 +24 23 19.9 X M26
2024-04-16 09:54:59 C 15 13 31.220 +24 46 08.04 V 703
2024-04-16 09:58:17 C 15 13 31.001 +24 46 10.16 V 703
2024-04-16 10:01:35 C 15 13 30.846 +24 46 12.07 V 703
2024-04-16 10:04:54 C 15 13 30.644 +24 46 14.30 V 703
2024-04-17 10:34:28 C 15 12 07.202 +25 01 27.48 V T05
2024-04-17 10:42:17 C 15 12 06.710 +25 01 32.48 V T05
2024-04-17 10:45:17 C 15 12 06.545 +25 01 34.43 V T05
2024-04-17 10:47:53 C 15 12 06.386 +25 01 36.23 V T05
2024-04-17 10:49:50 C 15 12 06.252 +25 01 37.49 V T05
2024-04-17 10:55:27 C 15 12 05.926 +25 01 40.80 V T05
2024-04-17 11:05:20 C 15 12 05.342 +25 01 47.17 V T05
2024-04-18 07:01:01 C 15 10 55.636 +25 13 45.66 V G96
2024-04-18 07:09:01 C 15 10 55.146 +25 13 50.45 V G96
2024-04-18 07:17:00 C 15 10 54.653 +25 13 55.27 V G96
2024-04-18 07:25:00 C 15 10 54.174 +25 14 00.02 V G96
2024-04-18 10:39:18 C 15 10 42.694 +25 15 57.06 V T05
2024-04-18 10:43:58 C 15 10 42.403 +25 15 59.98 V T05
2024-04-18 10:48:33 C 15 10 42.115 +25 16 02.71 V T05
2024-04-18 10:56:52 C 15 10 41.602 +25 16 07.43 V T05
2024-04-20 01:53:01 S 15 08 32.695 +25 35 06.83 V C57
2024-04-20 01:53:01 s 1 +77553.014 0 +261433.60 3290.0 C57
2024-04-20 02:13:01 S 15 08 31.814 +25 35 20.72 V C57
2024-04-20 02:13:01 s 1 +76544.204 0 +261038.68 7220.0 C57
2024-04-20 02:33:01 S 15 08 30.391 +25 35 30.95 V C57
2024-04-20 02:33:01 s 1 +75533.340 0 +260636.59 7990.0 C57
2024-04-20 02:53:01 S 15 08 29.227 +25 35 42.22 V C57
2024-04-20 02:53:01 s 1 +74520.448 0 +260227.35 5370.0 C57
2024-04-20 03:13:01 S 15 08 28.183 +25 35 51.94 V C57
2024-04-20 03:13:01 s 1 +73505.555 0 +259810.97 9120.0 C57
2024-04-20 03:33:01 S 15 08 26.717 +25 36 03.89 V C57
2024-04-20 03:33:01 s 1 +72488.657 0 +259387.33 8820.0 C57
2024-04-20 03:53:01 S 15 08 25.877 +25 36 14.87 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)