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
2019-05-07 09:27:32 C 14 33 30.90 +28 24 10.2 V 703
2019-05-07 09:42:39 C 14 33 30.03 +28 24 11.8 V 703
2019-05-08 10:00:01 C 14 31 49.87 +28 26 24.3 V T05
2019-05-08 10:04:00 C 14 31 49.57 +28 26 24.5 V T05
2019-05-08 10:14:00 C 14 31 48.87 +28 26 25.5 V T05
2019-05-08 10:49:39 C 14 31 46.33 +28 26 27.7 V T05
2019-05-10 08:43:49 C 14 28 39.29 +28 28 40.4 V T08
2019-05-10 08:49:44 C 14 28 38.89 +28 28 40.4 V T08
2019-05-10 09:16:28 C 14 28 37.02 +28 28 41.0 V T08
2019-05-10 09:35:27 C 14 28 35.64 +28 28 41.3 V T08
2019-05-11 16:40:28 C 14 26 30.81 +28 28 45.0 q D29
2019-05-11 17:05:56 C 14 26 29.07 +28 28 44.6 q D29
2019-05-11 17:31:24 C 14 26 27.34 +28 28 43.8 q D29
2019-05-12 08:53:33 C 14 25 26.86 +28 28 23.6 V T05
2019-05-12 08:58:09 C 14 25 26.54 +28 28 23.7 V T05
2019-05-12 09:17:45 C 14 25 25.20 +28 28 22.8 V T05
2019-05-13 05:45:30 C 14 24 05.04 +28 27 26.2 V G96
2019-05-13 05:53:39 C 14 24 04.50 +28 27 25.8 V G96
2019-05-13 06:01:48 C 14 24 03.95 +28 27 25.4 V G96
2019-05-13 06:09:57 C 14 24 03.40 +28 27 24.9 V G96
2019-05-14 05:42:02 C 14 22 32.47 +28 25 47.0 V 703
2019-05-14 05:49:45 C 14 22 31.96 +28 25 46.2 V 703
2019-05-14 05:57:28 C 14 22 31.46 +28 25 45.7 V 703
2019-05-14 06:05:11 C 14 22 30.94 +28 25 45.0 V 703
2019-05-14 09:44:30 C 14 22 16.85 +28 25 28.4 V T08
2019-05-14 10:02:47 C 14 22 15.62 +28 25 26.5 V T08
2019-05-14 10:18:24 C 14 22 14.61 +28 25 24.5 V T08
2019-05-14 10:31:00 C 14 22 13.74 +28 25 24.3 V T08
2019-05-15 22:34:46 C 14 19 57.79 +28 21 28.5 q 160
2019-05-15 22:36:44 C 14 19 57.68 +28 21 29.0 q 160
2019-05-15 22:38:50 C 14 19 57.55 +28 21 29.0 q 160
2019-05-15 22:41:12 C 14 19 57.37 +28 21 28.3 q 160
2019-05-20 08:51:50 C 14 13 39.73 +28 02 17.0 V T05
2019-05-20 08:59:21 C 14 13 39.28 +28 02 15.1 V T05
2019-05-20 09:03:47 C 14 13 39.00 +28 02 14.0 V T05
2019-05-22 10:03:25 C 14 10 57.556 +27 49 35.11 U F52
2019-05-22 10:19:11 C 14 10 56.675 +27 49 30.57 U F52
2019-05-24 11:36:39 C 14 08 23.39 +27 34 30.7 V T05
2019-05-24 11:55:19 C 14 08 22.43 +27 34 24.4 V T05
2019-05-24 12:12:39 C 14 08 21.52 +27 34 18.8 V T05
2019-05-24 12:16:38 C 14 08 21.34 +27 34 17.0 V T05
2019-05-26 08:07:56 C 14 06 13.82 +27 19 09.5 V T08
2019-05-26 08:12:01 C 14 06 13.62 +27 19 07.8 V T08
2019-05-26 08:26:20 C 14 06 12.94 +27 19 02.5 V T08
2019-05-26 08:45:22 C 14 06 11.96 +27 18 55.9 V T08
2019-05-27 06:45:57 C 14 05 10.61 +27 10 39.5 V 703
2019-05-27 06:53:31 C 14 05 10.26 +27 10 36.5 V 703
2019-05-27 07:01:04 C 14 05 09.90 +27 10 33.7 V 703
2019-05-27 07:08:37 C 14 05 09.54 +27 10 30.7 V 703
2019-05-28 09:01:28 C 14 04 00.33 +27 00 20.8 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)