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
2019-06-15 06:16:49 C 13 52 04.00 +23 06 41.1 V G96
2019-06-15 06:24:15 C 13 52 03.90 +23 06 36.1 V G96
2019-06-15 06:24:27 C 13 52 03.88 +23 06 36.0 V 703
2019-06-15 06:31:43 C 13 52 03.80 +23 06 31.1 V G96
2019-06-15 06:32:12 C 13 52 03.73 +23 06 30.4 V 703
2019-06-21 07:39:51 C 13 51 03.95 +21 27 38.7 V T05
2019-06-21 07:44:21 C 13 51 03.93 +21 27 35.7 V T05
2019-06-21 07:59:21 C 13 51 03.90 +21 27 25.2 V T05
2019-06-21 08:11:11 C 13 51 03.83 +21 27 16.7 V T05
2019-06-22 05:59:08 C 13 51 02.19 +21 11 48.3 V 703
2019-06-22 06:06:40 C 13 51 02.17 +21 11 42.8 V 703
2019-06-22 06:14:13 C 13 51 02.16 +21 11 37.2 V 703
2019-06-22 06:21:46 C 13 51 02.12 +21 11 31.0 V 703
2019-06-23 21:59:31 C 13 51 04.17 +20 43 04.1 q 160
2019-06-23 22:02:33 C 13 51 04.16 +20 43 01.8 q 160
2019-06-23 22:05:31 C 13 51 04.15 +20 42 59.8 q 160
2019-06-24 21:45:20 C 13 51 08.25 +20 25 49.8 q 160
2019-06-24 21:48:21 C 13 51 08.25 +20 25 47.6 q 160
2019-06-24 21:51:21 C 13 51 08.26 +20 25 45.4 q 160
2019-06-25 06:00:04 C 13 51 10.09 +20 19 48.4 V 703
2019-06-25 06:07:38 C 13 51 10.14 +20 19 43.1 V 703
2019-06-25 06:15:13 C 13 51 10.16 +20 19 37.4 V 703
2019-06-25 06:22:47 C 13 51 10.18 +20 19 31.9 V 703
2019-06-25 07:54:19 C 13 51 10.69 +20 18 26.4 V T05
2019-06-25 08:06:18 C 13 51 10.70 +20 18 18.1 V T05
2019-06-25 08:25:51 C 13 51 10.75 +20 18 03.7 V T05
2019-06-25 22:03:31 C 13 51 14.70 +20 08 01.3 q 160
2019-06-25 22:06:34 C 13 51 14.72 +20 07 59.0 q 160
2019-06-25 22:09:36 C 13 51 14.68 +20 07 56.2 q 160
2019-06-26 04:28:58 C 13 51 16.79 +20 03 18.5 V G96
2019-06-26 04:37:07 C 13 51 16.83 +20 03 12.6 V G96
2019-06-26 04:45:16 C 13 51 16.86 +20 03 06.5 V G96
2019-06-26 04:53:26 C 13 51 16.89 +20 03 00.5 V G96
2019-06-29 07:54:26 C 13 51 52.37 +19 07 05.6 V T05
2019-06-29 08:11:48 C 13 51 52.52 +19 06 52.2 V T05
2019-06-29 08:19:15 C 13 51 52.57 +19 06 46.6 V T05
2019-06-29 08:26:57 C 13 51 52.66 +19 06 40.3 V T05
2019-07-01 04:52:09 C 13 52 23.44 +18 32 58.0 V 703
2019-07-01 05:00:23 C 13 52 23.55 +18 32 51.8 V 703
2019-07-01 05:08:38 C 13 52 23.65 +18 32 45.4 V 703
2019-07-01 05:16:51 C 13 52 23.73 +18 32 39.4 V 703
2019-07-03 06:44:07 C 13 53 06.298 +17 54 43.95 U F52
2019-07-03 07:01:45 C 13 53 06.545 +17 54 30.32 U F52
2019-07-03 07:23:06 C 13 53 06.840 +17 54 13.60 U F52
2019-07-03 07:40:52 C 13 53 07.094 +17 54 00.01 U F52
2019-07-03 07:42:46 C 13 53 07.115 +17 53 58.40 U F52
2019-07-07 06:43:14 C 13 54 52.27 +16 39 56.3 V T08
2019-07-07 06:47:17 C 13 54 52.33 +16 39 54.1 V T08
2019-07-07 06:55:32 C 13 54 52.49 +16 39 47.0 V T08
2019-07-07 07:09:49 C 13 54 52.76 +16 39 35.7 V T08
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)