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
2021-08-08 14:35:44 C 03 51 36.87 -10 07 14.5 V T05
2021-08-08 14:43:03 C 03 51 39.56 -10 07 26.1 V T05
2021-08-08 14:49:00 C 03 51 41.75 -10 07 35.2 V T05
2021-08-08 15:01:35 C 03 51 46.37 -10 07 54.3 V T05
2021-08-08 15:03:33 C 03 51 47.10 -10 07 57.5 V T05
2021-08-08 15:06:16 C 03 51 48.12 -10 08 01.0 V T05
2021-08-10 14:16:46 C 04 09 08.79 -11 16 08.0 V T08
2021-08-10 14:22:45 C 04 09 10.89 -11 16 16.2 V T08
2021-08-10 14:24:44 C 04 09 11.58 -11 16 17.4 V T08
2021-08-10 14:48:42 C 04 09 20.02 -11 16 52.2 V T08
2021-08-10 14:56:00 C 04 09 22.59 -11 17 01.2 V T08
2021-08-10 15:00:44 C 04 09 24.23 -11 17 08.8 V T08
2021-08-12 14:06:55 C 04 25 53.84 -12 17 49.3 V T05
2021-08-12 14:11:32 C 04 25 55.39 -12 17 55.1 V T05
2021-08-12 14:23:19 C 04 25 59.33 -12 18 09.6 V T05
2021-08-12 14:47:46 C 04 26 07.49 -12 18 39.6 V T05
2021-08-16 14:39:00 C 04 56 59.22 -13 59 47.8 V T05
2021-08-16 14:45:00 C 04 57 01.00 -13 59 53.5 V T05
2021-08-16 14:53:45 C 04 57 03.60 -14 00 01.6 V T05
2021-08-16 15:12:06 C 04 57 09.04 -14 00 18.5 V T05
2021-08-18 14:30:02 C 05 11 03.60 -14 39 51.0 V T08
2021-08-18 14:47:47 C 05 11 08.55 -14 40 04.9 V T08
2021-08-18 14:56:56 C 05 11 11.10 -14 40 12.2 V T08
2021-08-18 15:09:08 C 05 11 14.50 -14 40 21.8 V T08
2021-08-21 14:34:55 C 05 30 40.38 -15 28 34.7 V T08
2021-08-21 14:41:37 C 05 30 42.08 -15 28 38.6 V T08
2021-08-21 14:52:56 C 05 30 44.96 -15 28 45.6 V T08
2021-08-26 14:27:53 C 05 59 31.27 -16 23 41.9 V T08
2021-08-26 14:28:33 C 05 59 31.43 -16 23 41.3 V T08
2021-08-26 14:48:07 C 05 59 35.68 -16 23 49.1 V T08
2021-08-26 14:53:26 C 05 59 36.86 -16 23 50.6 V T08
2021-08-26 15:02:44 C 05 59 38.86 -16 23 54.6 V T08
2021-08-26 15:09:02 C 05 59 40.26 -16 23 56.3 V T08
2021-08-26 15:17:44 C 05 59 42.15 -16 23 59.6 V T08
2021-08-28 14:25:27 C 06 09 54.93 -16 38 19.9 V T05
2021-08-28 14:31:25 C 06 09 56.15 -16 38 21.6 V T05
2021-08-28 14:55:57 C 06 10 01.21 -16 38 28.7 V T05
2021-08-28 15:09:52 C 06 10 04.08 -16 38 32.9 V T05
2021-09-14 14:37:06 C 07 20 23.27 -16 57 06.6 V T08
2021-09-14 14:52:22 C 07 20 25.43 -16 57 05.1 V T08
2021-09-14 15:06:20 C 07 20 27.41 -16 57 04.1 V T08
2021-09-14 15:18:17 C 07 20 29.08 -16 57 02.7 V T08
2021-09-29 14:19:24 C 08 07 56.10 -15 53 59.4 V T05
2021-09-29 14:24:01 C 08 07 56.64 -15 53 58.4 V T05
2021-09-29 14:48:41 C 08 07 59.58 -15 53 53.3 V T05
2021-09-29 15:07:28 C 08 08 01.83 -15 53 49.4 V T05
2021-10-02 14:44:35 C 08 16 41.81 -15 37 45.9 V T05
2021-10-02 15:18:22 C 08 16 45.75 -15 37 38.6 V T05
2021-10-02 15:28:55 C 08 16 46.95 -15 37 36.0 V T05
2021-10-03 14:49:48 C 08 19 34.01 -15 32 14.0 V T05
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)