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
2022-02-25 11:03:51 s 1 -127442.35 0 -62798.716 2590.0 C57
2022-02-25 11:13:51 S 10 20 53.695 +33 07 36.16 V C57
2022-02-25 11:13:51 s 1 -126697.77 2 -63595.020 9660.0 C57
2022-02-25 11:23:51 S 10 20 52.886 +33 07 45.62 V C57
2022-02-25 11:23:51 s 1 -125947.97 4 -64388.701 4580.0 C57
2022-02-25 11:33:51 S 10 20 52.207 +33 07 53.11 V C57
2022-02-25 11:33:51 s 1 -125192.94 4 -65179.704 7310.0 C57
2022-02-25 12:24:31 C 10 21 07.31 +33 08 37.2 V T08
2022-02-25 12:42:33 C 10 21 05.93 +33 08 54.0 V T08
2022-02-25 13:17:54 C 10 21 03.22 +33 09 26.4 V T08
2022-02-25 13:28:31 C 10 21 02.40 +33 09 36.1 V T08
2022-02-26 10:17:00 C 10 19 32.38 +33 28 45.2 V T08
2022-02-26 10:23:02 C 10 19 31.93 +33 28 50.6 V T08
2022-02-26 11:13:46 C 10 19 28.04 +33 29 36.0 V T08
2022-02-26 11:53:18 C 10 19 25.02 +33 30 11.1 V T08
2022-02-26 13:59:22 C 10 19 16.934 +33 32 10.97 V P07
2022-02-26 14:03:51 C 10 19 16.615 +33 32 15.54 V P07
2022-02-26 15:01:30 C 10 19 12.223 +33 33 07.31 V P07
2022-02-26 16:19:22 C 10 19 06.276 +33 34 17.36 V P07
2022-02-26 22:25:11 C 10 18 40.21 +33 39 25.7 V 130
2022-02-26 22:26:19 C 10 18 40.13 +33 39 26.6 V 130
2022-02-26 22:27:52 C 10 18 40.02 +33 39 28.1 V 130
2022-02-26 22:29:23 C 10 18 39.90 +33 39 29.3 V 130
2022-02-27 07:09:13 C 10 18 02.71 +33 47 04.1 V 703
2022-02-27 07:16:51 C 10 18 02.13 +33 47 10.7 V 703
2022-02-27 07:24:28 C 10 18 01.57 +33 47 17.2 V 703
2022-02-27 07:32:06 C 10 18 00.99 +33 47 23.7 V 703
2022-02-28 08:45:24 C 10 16 15.08 +34 08 32.1 V T05
2022-02-28 08:54:05 C 10 16 14.44 +34 08 39.3 V T05
2022-02-28 08:56:43 C 10 16 14.25 +34 08 41.4 V T05
2022-02-28 09:04:04 C 10 16 13.70 +34 08 47.4 V T05
2022-02-28 22:51:51 C 10 15 16.30 +34 19 42.6 V L65
2022-02-28 23:04:50 C 10 15 15.35 +34 19 52.5 V L65
2022-02-28 23:13:05 C 10 15 14.77 +34 19 59.2 V L65
2022-03-01 09:10:13 C 10 14 34.27 +34 27 51.2 V T05
2022-03-01 09:12:51 C 10 14 34.08 +34 27 53.2 V T05
2022-03-01 09:17:28 C 10 14 33.74 +34 27 56.8 V T05
2022-03-01 09:27:21 C 10 14 33.04 +34 28 04.5 V T05
2022-03-01 10:07:24 C 10 14 30.12 +34 28 35.6 V T08
2022-03-01 10:15:37 C 10 14 29.53 +34 28 41.9 V T08
2022-03-01 10:25:29 C 10 14 28.82 +34 28 49.4 V T08
2022-03-01 11:16:18 C 10 14 25.15 +34 29 28.0 V T08
2022-03-02 09:10:36 C 10 12 57.60 +34 45 48.2 V T08
2022-03-02 09:13:14 C 10 12 57.42 +34 45 50.1 V T08
2022-03-02 09:23:23 C 10 12 56.70 +34 45 57.5 V T08
2022-03-02 09:35:30 C 10 12 55.85 +34 46 06.4 V T08
2022-03-02 21:47:39 C 10 12 07.80 +34 54 41.7 V L65
2022-03-02 22:00:35 C 10 12 06.90 +34 54 50.9 V L65
2022-03-02 22:14:27 C 10 12 05.97 +34 55 00.7 V L65
2022-03-03 07:37:39 C 10 11 29.07 +35 01 36.9 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)