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
2021-10-03 14:59:46 C 08 19 35.16 -15 32 11.7 V T05
2021-10-03 15:06:22 C 08 19 35.92 -15 32 10.3 V T05
2021-10-03 15:29:30 C 08 19 38.61 -15 32 05.4 V T05
2021-10-07 14:43:19 C 08 30 47.53 -15 09 40.2 V T05
2021-10-07 15:11:04 C 08 30 50.64 -15 09 33.8 V T05
2021-10-07 15:18:59 C 08 30 51.54 -15 09 32.0 V T05
2021-10-07 15:26:54 C 08 30 52.43 -15 09 30.2 V T05
2021-10-10 12:01:10 C 08 38 42.93 -14 52 58.6 V 703
2021-10-10 12:12:42 C 08 38 44.23 -14 52 55.2 V 703
2021-10-10 12:18:28 C 08 38 44.85 -14 52 54.0 V 703
2021-10-11 14:43:44 C 08 41 43.99 -14 46 23.1 V T05
2021-10-11 15:13:10 C 08 41 47.20 -14 46 16.1 V T05
2021-10-11 15:22:26 C 08 41 48.24 -14 46 13.9 V T05
2021-10-13 14:22:28 C 08 47 03.78 -14 34 36.8 V T08
2021-10-13 14:28:27 C 08 47 04.43 -14 34 35.3 V T08
2021-10-13 15:04:35 C 08 47 08.34 -14 34 26.6 V T08
2021-10-16 14:42:17 C 08 55 01.98 -14 16 32.2 V T08
2021-10-16 14:58:15 C 08 55 03.68 -14 16 28.3 V T08
2021-10-16 14:59:34 C 08 55 03.82 -14 16 27.9 V T08
2021-10-16 15:11:32 C 08 55 05.09 -14 16 25.1 V T08
2021-10-16 15:16:11 C 08 55 05.58 -14 16 23.9 V T08
2021-10-16 15:21:30 C 08 55 06.14 -14 16 22.5 V T08
2021-10-16 15:26:48 C 08 55 06.71 -14 16 21.3 V T08
2021-10-19 14:56:10 C 09 02 51.35 -13 58 15.8 V T05
2021-10-19 15:02:08 C 09 02 51.97 -13 58 14.5 V T05
2021-10-19 15:12:48 C 09 02 53.08 -13 58 11.9 V T05
2021-10-19 15:32:00 C 09 02 55.10 -13 58 07.2 V T05
2021-10-21 14:08:53 C 09 07 53.96 -13 46 12.3 V T08
2021-10-21 14:14:11 C 09 07 54.55 -13 46 10.8 V T08
2021-10-21 14:23:29 C 09 07 55.50 -13 46 08.5 V T08
2021-10-21 14:45:23 C 09 07 57.75 -13 46 03.2 V T08
2021-10-23 14:26:12 C 09 12 59.84 -13 33 48.2 V T05
2021-10-23 14:31:29 C 09 13 00.39 -13 33 46.8 V T05
2021-10-23 14:41:24 C 09 13 01.40 -13 33 44.3 V T05
2021-10-23 15:09:55 C 09 13 04.30 -13 33 37.1 V T05
2021-10-24 14:37:38 C 09 15 31.72 -13 27 32.9 V T08
2021-10-24 14:56:57 C 09 15 33.67 -13 27 28.2 V T08
2021-10-24 15:12:15 C 09 15 35.21 -13 27 24.4 V T08
2021-10-24 15:20:52 C 09 15 36.08 -13 27 22.2 V T08
2021-10-25 14:43:46 C 09 18 02.14 -13 21 18.1 V T08
2021-10-25 15:08:25 C 09 18 04.62 -13 21 11.7 V T08
2021-10-25 15:16:05 C 09 18 05.39 -13 21 09.7 V T08
2021-10-25 15:27:58 C 09 18 06.57 -13 21 06.6 V T08
2021-10-26 14:40:18 C 09 20 30.71 -13 15 04.1 V T05
2021-10-26 14:48:15 C 09 20 31.51 -13 15 01.9 V T05
2021-10-26 15:15:17 C 09 20 34.20 -13 14 55.2 V T05
2021-10-26 15:25:49 C 09 20 35.26 -13 14 52.5 V T05
2021-10-28 11:43:04 C 09 25 07.68 -13 03 17.9 V 703
2021-10-28 11:50:44 C 09 25 08.41 -13 03 15.6 V 703
2021-10-28 11:58:22 C 09 25 09.18 -13 03 13.8 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)