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
2022-02-02 21:02:15 C 11 00 48.66 +20 31 19.0 V L92
2022-02-02 21:07:20 C 11 00 48.35 +20 31 27.9 V L92
2022-02-03 13:39:49 C 10 59 46.96 +20 59 56.4 V T05
2022-02-03 13:44:27 C 10 59 46.64 +21 00 04.4 V T05
2022-02-03 14:35:24 C 10 59 43.30 +21 01 30.9 V T05
2022-02-03 15:16:53 C 10 59 40.59 +21 02 41.1 V T05
2022-02-04 08:46:02 C 10 58 36.07 +21 32 25.5 V G96
2022-02-04 08:53:26 C 10 58 35.57 +21 32 38.3 V G96
2022-02-04 09:00:50 C 10 58 35.07 +21 32 50.8 V G96
2022-02-04 09:08:16 C 10 58 34.57 +21 33 03.4 V G96
2022-02-04 10:59:45 C 10 58 27.86 +21 36 15.5 V T05
2022-02-04 11:05:09 C 10 58 27.50 +21 36 24.7 V T05
2022-02-04 11:21:05 C 10 58 26.41 +21 36 51.8 V T05
2022-02-04 11:30:28 C 10 58 25.78 +21 37 07.8 V T05
2022-02-05 08:22:11 C 10 57 05.47 +22 12 17.8 V 703
2022-02-05 08:29:46 C 10 57 04.95 +22 12 30.6 V 703
2022-02-05 08:37:21 C 10 57 04.42 +22 12 43.3 V 703
2022-02-05 08:44:57 C 10 57 03.89 +22 12 56.2 V 703
2022-02-05 10:55:34 C 10 56 55.63 +22 16 39.0 V T08
2022-02-05 10:58:13 C 10 56 55.45 +22 16 43.5 V T08
2022-02-05 11:06:16 C 10 56 54.90 +22 16 57.0 V T08
2022-02-05 11:21:33 C 10 56 53.82 +22 17 22.8 V T08
2022-02-06 08:00:12 C 10 55 32.12 +22 51 47.8 V 703
2022-02-06 08:07:47 C 10 55 31.58 +22 52 00.6 V 703
2022-02-06 08:15:22 C 10 55 31.04 +22 52 13.2 V 703
2022-02-06 08:22:57 C 10 55 30.51 +22 52 25.8 V 703
2022-02-06 11:06:36 C 10 55 19.66 +22 57 01.2 V T08
2022-02-06 11:09:55 C 10 55 19.42 +22 57 06.6 V T08
2022-02-06 11:14:34 C 10 55 19.09 +22 57 14.4 V T08
2022-02-06 11:22:08 C 10 55 18.54 +22 57 26.9 V T08
2022-02-07 10:37:01 C 10 53 44.11 +23 35 45.2 V T05
2022-02-07 10:39:39 C 10 53 43.92 +23 35 49.5 V T05
2022-02-07 10:43:37 C 10 53 43.63 +23 35 56.0 V T05
2022-02-07 10:50:53 C 10 53 43.10 +23 36 08.0 V T05
2022-02-07 12:07:24 C 10 53 37.49 +23 38 13.5 V T05
2022-02-07 12:07:24 C 10 53 37.48 +23 38 13.9 V T08
2022-02-07 12:07:24 C 10 53 37.48 +23 38 13.9 V T08
2022-02-07 12:08:04 C 10 53 37.44 +23 38 14.6 V T05
2022-02-07 12:08:04 C 10 53 37.42 +23 38 15.0 V T08
2022-02-07 12:08:43 C 10 53 37.39 +23 38 15.6 V T05
2022-02-07 12:08:44 C 10 53 37.38 +23 38 16.0 V T08
2022-02-07 12:09:23 C 10 53 37.34 +23 38 16.7 V T05
2022-02-07 12:09:24 C 10 53 37.32 +23 38 17.2 V T08
2022-02-07 12:10:02 C 10 53 37.30 +23 38 17.8 V T05
2022-02-07 12:10:04 C 10 53 37.29 +23 38 18.3 V T08
2022-02-08 02:23:52 S 10 53 09.866 +24 02 12.62 V C57
2022-02-08 02:23:52 s 1 -185381.31 6 +236436.91 6430.0 C57
2022-02-08 02:33:52 S 10 53 09.041 +24 02 28.64 V C57
2022-02-08 02:33:52 s 1 -185579.17 8 +235881.04 7750.0 C57
2022-02-08 02:43:52 S 10 53 08.220 +24 02 44.74 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)