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
2021-06-22 14:25:36 C 22 14 42.90 +09 56 07.7 V T05
2021-06-22 14:38:41 C 22 14 44.77 +09 56 08.0 V T05
2021-06-22 14:49:14 C 22 14 46.28 +09 56 08.2 V T05
2021-06-22 14:51:52 C 22 14 46.66 +09 56 08.3 V T05
2021-06-23 11:49:04 C 22 17 56.01 +09 56 18.2 V T08
2021-06-23 11:55:42 C 22 17 56.98 +09 56 18.2 V T08
2021-06-23 12:00:24 C 22 17 57.67 +09 56 18.2 V T08
2021-06-23 12:15:41 C 22 17 59.93 +09 56 18.3 V T08
2021-06-23 19:43:19 C 22 19 08.07 +09 56 07.8 V N86
2021-06-23 19:55:45 C 22 19 09.95 +09 56 08.0 V N86
2021-06-23 20:08:07 C 22 19 11.73 +09 56 07.7 V N86
2021-06-23 20:20:44 C 22 19 13.70 +09 56 08.1 V N86
2021-06-24 12:22:03 C 22 21 42.24 +09 55 54.9 V T08
2021-06-24 12:26:46 C 22 21 42.96 +09 55 54.8 V T08
2021-06-24 12:30:52 C 22 21 43.57 +09 55 54.8 V T08
2021-06-24 13:02:00 C 22 21 48.27 +09 55 54.0 V T08
2021-06-25 11:38:32 C 22 25 22.83 +09 54 54.5 V T05
2021-06-25 11:43:09 C 22 25 23.57 +09 54 54.3 V T05
2021-06-25 11:57:58 C 22 25 25.87 +09 54 53.6 V T05
2021-06-25 12:05:54 C 22 25 27.10 +09 54 53.2 V T05
2021-06-26 22:06:08 C 22 31 00.20 +09 52 06.4 q L47
2021-06-26 22:23:30 C 22 31 03.08 +09 52 04.9 q L47
2021-06-28 13:55:18 C 22 37 46.72 +09 47 17.4 V T08
2021-06-28 14:00:50 C 22 37 47.66 +09 47 16.6 V T08
2021-06-28 14:26:51 C 22 37 52.05 +09 47 12.6 V T08
2021-06-29 00:17:18 C 22 39 36.21 +09 45 28.5 V 089
2021-06-29 00:47:18 C 22 39 41.42 +09 45 23.4 V 089
2021-06-29 00:50:37 C 22 39 41.97 +09 45 22.9 V 089
2021-07-01 13:48:40 C 22 50 54.59 +09 32 26.1 V T08
2021-07-01 13:56:38 C 22 50 56.05 +09 32 24.0 V T08
2021-07-01 14:34:44 C 22 51 03.12 +09 32 14.0 V T08
2021-07-01 14:48:44 C 22 51 05.71 +09 32 10.3 V T08
2021-07-02 13:15:18 C 22 55 27.75 +09 25 46.1 V T08
2021-07-02 13:17:57 C 22 55 28.26 +09 25 45.3 V T08
2021-07-02 13:54:52 C 22 55 35.31 +09 25 34.2 V T08
2021-07-02 14:00:50 C 22 55 36.45 +09 25 32.3 V T08
2021-07-05 12:40:59 C 23 10 13.92 +08 59 08.4 V T08
2021-07-05 12:50:56 C 23 10 16.03 +08 59 04.1 V T08
2021-07-05 12:53:36 C 23 10 16.58 +08 59 03.0 V T08
2021-07-05 13:15:21 C 23 10 21.17 +08 58 53.4 V T08
2021-07-08 09:51:18 C 23 25 58.13 +08 22 57.7 V 703
2021-07-08 09:57:57 C 23 25 59.69 +08 22 53.8 V 703
2021-07-08 10:04:36 C 23 26 01.24 +08 22 49.8 V 703
2021-07-08 10:11:15 C 23 26 02.79 +08 22 45.6 V 703
2021-07-08 13:39:12 C 23 26 52.48 +08 20 44.1 V T05
2021-07-08 13:41:50 C 23 26 53.10 +08 20 42.3 V T05
2021-07-08 13:46:27 C 23 26 54.17 +08 20 39.6 V T05
2021-07-08 14:21:13 C 23 27 02.27 +08 20 18.3 V T05
2021-07-09 08:59:07 C 23 31 35.10 +08 08 19.4 V 703
2021-07-09 09:06:41 C 23 31 36.93 +08 08 14.4 V 703
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)