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
2021-07-09 09:14:14 C 23 31 38.76 +08 08 09.4 V 703
2021-07-09 09:21:47 C 23 31 40.58 +08 08 04.5 V 703
2021-07-09 12:30:02 C 23 32 27.16 +08 06 04.8 V T08
2021-07-09 12:44:01 C 23 32 30.54 +08 05 55.5 V T08
2021-07-09 12:47:21 C 23 32 31.34 +08 05 53.3 V T08
2021-07-09 13:02:41 C 23 32 35.04 +08 05 43.1 V T08
2021-07-10 00:24:04 C 23 35 25.18 +07 57 43.0 V 089
2021-07-10 00:27:22 C 23 35 26.00 +07 57 40.6 V 089
2021-07-10 00:30:40 C 23 35 26.80 +07 57 39.2 V 089
2021-07-10 00:33:58 C 23 35 27.65 +07 57 36.7 V 089
2021-07-10 00:37:16 C 23 35 28.47 +07 57 34.0 V 089
2021-07-10 00:40:34 C 23 35 29.22 +07 57 32.1 V 089
2021-07-10 00:43:52 C 23 35 30.06 +07 57 30.0 V 089
2021-07-10 00:47:10 C 23 35 30.89 +07 57 27.4 V 089
2021-07-10 00:50:28 C 23 35 31.68 +07 57 25.4 V 089
2021-07-10 00:53:46 C 23 35 32.53 +07 57 22.5 V 089
2021-07-11 12:47:18 C 23 44 49.76 +07 30 33.2 V T05
2021-07-11 12:50:36 C 23 44 50.61 +07 30 30.5 V T05
2021-07-11 12:55:12 C 23 44 51.81 +07 30 26.9 V T05
2021-07-11 13:07:03 C 23 44 54.87 +07 30 17.5 V T05
2021-07-13 12:57:46 C 23 58 02.40 +06 48 31.9 V T08
2021-07-13 13:03:48 C 23 58 04.08 +06 48 26.2 V T08
2021-07-13 13:07:47 C 23 58 05.17 +06 48 22.4 V T08
2021-07-13 13:16:26 C 23 58 07.57 +06 48 14.3 V T08
2021-07-15 00:27:27 C 00 08 20.92 +06 12 51.1 V 089
2021-07-15 00:30:46 C 00 08 21.90 +06 12 47.9 V 089
2021-07-15 00:34:04 C 00 08 22.83 +06 12 44.3 V 089
2021-07-15 00:43:58 C 00 08 25.76 +06 12 33.5 V 089
2021-07-15 00:47:16 C 00 08 26.74 +06 12 29.9 V 089
2021-07-15 00:50:34 C 00 08 27.67 +06 12 26.6 V 089
2021-07-15 00:53:52 C 00 08 28.65 +06 12 23.5 V 089
2021-07-15 00:57:10 C 00 08 29.60 +06 12 19.9 V 089
2021-07-16 00:31:00 C 00 15 37.52 +05 46 32.1 V 089
2021-07-16 00:34:18 C 00 15 38.54 +05 46 28.3 V 089
2021-07-16 00:37:36 C 00 15 39.51 +05 46 24.8 V 089
2021-07-16 00:40:54 C 00 15 40.52 +05 46 21.3 V 089
2021-07-16 00:44:12 C 00 15 41.49 +05 46 17.4 V 089
2021-07-16 00:47:30 C 00 15 42.52 +05 46 13.7 V 089
2021-07-16 00:50:48 C 00 15 43.50 +05 46 09.8 V 089
2021-07-16 00:54:06 C 00 15 44.52 +05 46 06.3 V 089
2021-07-16 00:57:24 C 00 15 45.48 +05 46 02.3 V 089
2021-07-16 01:00:42 C 00 15 46.48 +05 45 58.8 V 089
2021-07-17 00:31:01 C 00 23 07.13 +05 18 26.1 V 089
2021-07-17 00:34:19 C 00 23 08.15 +05 18 22.0 V 089
2021-07-17 00:37:37 C 00 23 09.18 +05 18 18.5 V 089
2021-07-17 00:40:55 C 00 23 10.19 +05 18 14.0 V 089
2021-07-17 00:44:13 C 00 23 11.23 +05 18 10.3 V 089
2021-07-17 00:47:31 C 00 23 12.28 +05 18 06.3 V 089
2021-07-17 00:50:49 C 00 23 13.30 +05 18 02.2 V 089
2021-07-17 00:54:07 C 00 23 14.30 +05 17 58.5 V 089
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)