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
2021-11-16 14:17:08 C 10 08 42.86 -10 50 04.3 V T05
2021-11-17 10:58:30 C 10 10 31.11 -10 43 09.4 V 703
2021-11-17 11:05:43 C 10 10 31.72 -10 43 06.8 V 703
2021-11-17 11:12:57 C 10 10 32.32 -10 43 04.3 V 703
2021-11-17 11:20:11 C 10 10 32.98 -10 43 01.5 V 703
2021-11-17 14:43:41 C 10 10 50.60 -10 41 50.5 V T08
2021-11-17 14:49:00 C 10 10 51.01 -10 41 48.9 V T08
2021-11-17 15:03:37 C 10 10 52.26 -10 41 44.0 V T08
2021-11-17 15:18:57 C 10 10 53.53 -10 41 38.8 V T08
2021-11-20 14:38:55 C 10 16 59.10 -10 16 39.9 V T05
2021-11-20 14:44:12 C 10 16 59.54 -10 16 38.0 V T05
2021-11-20 14:54:32 C 10 17 00.38 -10 16 34.3 V T05
2021-11-20 15:21:04 C 10 17 02.52 -10 16 25.0 V T05
2021-11-22 13:36:33 C 10 20 53.58 -09 59 20.7 V T08
2021-11-22 13:40:32 C 10 20 53.90 -09 59 19.1 V T08
2021-11-22 13:50:55 C 10 20 54.74 -09 59 15.4 V T08
2021-11-22 14:07:31 C 10 20 56.06 -09 59 09.3 V T08
2021-11-22 14:26:47 C 10 20 57.59 -09 59 02.0 V T08
2021-11-23 04:05:47 C 10 22 04.44 -09 53 56.1 V K87
2021-11-23 04:11:04 C 10 22 04.86 -09 53 54.3 V K87
2021-11-23 04:16:22 C 10 22 05.28 -09 53 52.2 V K87
2021-11-24 13:34:48 C 10 24 47.55 -09 40 52.5 V T05
2021-11-24 13:39:24 C 10 24 47.92 -09 40 50.9 V T05
2021-11-24 13:54:01 C 10 24 49.05 -09 40 45.0 V T05
2021-11-24 14:07:48 C 10 24 50.11 -09 40 39.6 V T05
2021-11-26 14:02:47 C 10 28 38.07 -09 21 19.8 V T08
2021-11-26 14:04:47 C 10 28 38.21 -09 21 18.7 V T08
2021-11-26 14:15:27 C 10 28 39.02 -09 21 14.4 V T08
2021-11-26 14:17:26 C 10 28 39.18 -09 21 13.6 V T08
2021-11-26 14:20:06 C 10 28 39.38 -09 21 12.5 V T08
2021-11-26 14:30:04 C 10 28 40.13 -09 21 08.7 V T08
2021-11-26 14:41:08 C 10 28 40.97 -09 21 04.2 V T08
2021-11-26 14:45:48 C 10 28 41.31 -09 21 02.1 V T08
2021-11-28 15:04:32 C 10 32 24.96 -09 00 34.1 V T05
2021-11-28 15:09:09 C 10 32 25.29 -09 00 32.1 V T05
2021-11-28 15:17:06 C 10 32 25.91 -09 00 28.3 V T05
2021-11-28 15:40:14 C 10 32 27.58 -09 00 18.6 V T05
2021-11-29 11:47:20 C 10 33 58.88 -08 51 28.9 V 703
2021-11-29 11:58:23 C 10 33 59.68 -08 51 24.3 V 703
2021-11-29 12:09:26 C 10 34 00.49 -08 51 20.6 V 703
2021-11-29 12:20:28 C 10 34 01.32 -08 51 14.1 V 703
2021-12-02 11:30:55 C 10 39 15.15 -08 18 22.6 V 703
2021-12-02 11:38:30 C 10 39 15.66 -08 18 18.9 V 703
2021-12-02 11:46:05 C 10 39 16.17 -08 18 15.4 V 703
2021-12-02 11:53:40 C 10 39 16.71 -08 18 11.9 V 703
2021-12-05 08:21:43 C 10 44 04.24 -07 43 46.1 V W94
2021-12-05 08:30:10 C 10 44 04.80 -07 43 42.1 V W94
2021-12-05 08:38:31 C 10 44 05.36 -07 43 37.9 V W94
2021-12-05 10:41:04 C 10 44 13.79 -07 42 45.5 V 703
2021-12-05 10:48:46 C 10 44 14.33 -07 42 41.8 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)