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
2019-04-21 17:54:46 C 14 59 16.41 +26 25 07.2 q C97
2019-04-21 17:56:56 C 14 59 16.23 +26 25 09.5 q C97
2019-04-21 17:59:08 C 14 59 16.06 +26 25 10.5 q C97
2019-04-22 11:27:11 C 14 58 08.16 +26 34 03.6 V T05
2019-04-22 11:43:24 C 14 58 07.07 +26 34 11.4 V T05
2019-04-22 11:47:30 C 14 58 06.79 +26 34 13.4 V T05
2019-04-22 12:09:18 C 14 58 05.32 +26 34 24.0 V T05
2019-04-24 11:12:34 C 14 55 00.00 +26 56 46.2 V T08
2019-04-24 11:27:05 C 14 54 58.99 +26 56 52.8 V T08
2019-04-24 11:31:10 C 14 54 58.73 +26 56 54.7 V T08
2019-04-24 11:53:22 C 14 54 57.17 +26 57 04.6 V T08
2019-04-25 09:16:49 C 14 53 31.23 +27 06 27.3 V 703
2019-04-25 09:24:21 C 14 53 30.73 +27 06 30.8 V 703
2019-04-25 09:31:52 C 14 53 30.19 +27 06 33.6 V 703
2019-04-25 09:39:24 C 14 53 29.64 +27 06 37.0 V 703
2019-04-26 11:26:40 C 14 51 45.13 +27 17 21.4 V T05
2019-04-26 11:29:19 C 14 51 44.95 +27 17 22.6 V T05
2019-04-26 13:09:17 C 14 51 37.90 +27 18 02.1 V T05
2019-04-28 08:03:13 C 14 48 41.72 +27 34 10.2 V 703
2019-04-28 08:10:46 C 14 48 41.11 +27 34 13.5 V 703
2019-04-28 08:25:53 C 14 48 39.92 +27 34 19.1 V 703
2019-04-30 11:08:19 C 14 45 08.64 +27 50 49.1 V T05
2019-04-30 11:22:31 C 14 45 07.61 +27 50 52.9 V T05
2019-04-30 11:47:17 C 14 45 05.82 +27 51 00.2 V T05
2019-04-30 11:54:11 C 14 45 05.33 +27 51 02.1 V T05
2019-05-02 10:51:32 C 14 41 48.21 +28 03 40.3 V T08
2019-05-02 11:06:40 C 14 41 47.09 +28 03 43.9 V T08
2019-05-02 11:32:54 C 14 41 45.18 +28 03 50.1 V T08
2019-05-02 11:38:56 C 14 41 44.76 +28 03 51.7 V T08
2019-05-02 19:24:17 C 14 41 11.88 +28 05 38.5 q D29
2019-05-02 20:05:01 C 14 41 08.97 +28 05 47.6 q D29
2019-05-03 08:28:14 C 14 40 17.14 +28 08 36.0 V 703
2019-05-03 08:35:49 C 14 40 16.64 +28 08 37.4 V 703
2019-05-03 08:43:25 C 14 40 16.04 +28 08 38.7 V 703
2019-05-03 08:51:01 C 14 40 15.41 +28 08 41.0 V 703
2019-05-04 11:19:58 C 14 38 24.18 +28 14 02.6 V T05
2019-05-04 12:03:22 C 14 38 21.04 +28 14 10.0 V T05
2019-05-04 12:10:27 C 14 38 20.53 +28 14 11.3 V T05
2019-05-04 17:47:46 C 14 37 57.53 +28 15 12.1 q C97
2019-05-04 17:49:57 C 14 37 57.38 +28 15 12.5 q C97
2019-05-04 17:52:09 C 14 37 57.24 +28 15 13.0 q C97
2019-05-04 17:54:20 C 14 37 57.05 +28 15 13.3 q C97
2019-05-06 10:22:41 C 14 35 07.26 +28 21 29.7 V T08
2019-05-06 10:37:24 C 14 35 06.19 +28 21 31.5 V T08
2019-05-06 11:03:58 C 14 35 04.30 +28 21 34.8 V T08
2019-05-06 11:10:51 C 14 35 03.78 +28 21 35.6 V T08
2019-05-07 00:18:53 C 14 34 09.08 +28 23 08.7 q 160
2019-05-07 00:21:49 C 14 34 08.86 +28 23 09.1 q 160
2019-05-07 00:24:51 C 14 34 08.68 +28 23 09.1 q 160
2019-05-07 09:19:59 C 14 33 31.44 +28 24 08.4 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)