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
2017-03-03 06:09:49 C 09 55 50.94 +35 15 11.1 R G45
2017-03-03 06:28:45 C 09 55 49.75 +35 15 22.9 R G45
2017-03-03 06:37:27 C 09 55 49.22 +35 15 28.5 R G45
2017-03-05 01:50:21 C 09 53 24.08 +35 40 59.5 q W33
2017-03-05 02:07:28 C 09 53 23.05 +35 41 09.1 q W33
2017-03-05 02:25:02 C 09 53 22.14 +35 41 19.3 q W33
2017-03-05 04:47:58 C 09 53 14.20 +35 42 39.1 V G45
2017-03-05 04:57:05 C 09 53 13.67 +35 42 44.2 V G45
2017-03-05 05:52:47 C 09 53 10.46 +35 43 15.2 V G45
2017-03-05 06:07:23 C 09 53 09.63 +35 43 23.2 V G45
2017-03-05 07:40:13 C 09 53 04.27 +35 44 13.1 V G45
2017-03-05 07:41:46 C 09 53 04.19 +35 44 14.1 V G45
2017-03-05 07:49:31 C 09 53 04.54 +35 44 20.9 L T05
2017-03-05 08:28:34 C 09 53 02.30 +35 44 42.8 L T05
2017-03-05 08:39:50 C 09 53 01.64 +35 44 48.6 L T05
2017-03-05 09:01:30 C 09 52 59.69 +35 44 56.5 V G45
2017-03-05 09:11:05 C 09 52 59.83 +35 45 06.0 L T05
2017-03-05 10:06:44 C 09 52 56.05 +35 45 30.6 V G45
2017-03-07 09:24:50 C 09 50 31.72 +36 09 28.9 L T08
2017-03-07 09:45:25 C 09 50 30.65 +36 09 38.4 L T08
2017-03-07 10:06:10 C 09 50 29.52 +36 09 48.3 L T08
2017-03-07 10:27:18 C 09 50 28.43 +36 09 57.5 L T08
2017-03-07 19:24:13 C 09 50 03.31 +36 13 59.2 q 160
2017-03-07 19:26:16 C 09 50 03.22 +36 14 00.1 q 160
2017-03-07 19:28:18 C 09 50 03.08 +36 14 01.0 q 160
2017-03-08 07:49:44 C 09 49 27.11 +36 19 31.2 q H45
2017-03-08 07:51:05 C 09 49 27.03 +36 19 31.7 q H45
2017-03-08 07:52:16 C 09 49 26.97 +36 19 32.3 q H45
2017-03-08 07:53:23 C 09 49 26.92 +36 19 32.9 q H45
2017-03-08 07:54:33 C 09 49 26.87 +36 19 33.4 q H45
2017-03-08 07:55:37 C 09 49 26.82 +36 19 33.9 q H45
2017-03-08 21:38:00 C 09 48 49.75 +36 25 23.5 q 160
2017-03-08 21:39:59 C 09 48 49.55 +36 25 24.6 q 160
2017-03-08 21:41:50 C 09 48 49.58 +36 25 24.2 q 160
2017-03-09 06:14:16 C 09 48 26.31 +36 28 54.1 u H21
2017-03-09 06:16:42 C 09 48 26.18 +36 28 55.2 u H21
2017-03-09 06:19:13 C 09 48 26.05 +36 28 56.2 u H21
2017-03-09 06:21:59 C 09 48 25.94 +36 28 57.3 u H21
2017-03-10 22:56:25 C 09 46 43.51 +36 44 07.8 q 160
2017-03-10 22:58:25 C 09 46 43.42 +36 44 08.4 q 160
2017-03-10 23:00:25 C 09 46 43.30 +36 44 08.9 q 160
2017-03-15 04:03:10 C 09 43 11.37 +37 12 37.8 u H21
2017-03-15 04:05:37 C 09 43 11.29 +37 12 38.3 u H21
2017-03-15 04:08:33 C 09 43 11.20 +37 12 39.0 u H21
2017-03-15 04:11:30 C 09 43 11.10 +37 12 39.7 u H21
2017-03-15 04:14:26 C 09 43 11.00 +37 12 40.3 u H21
2017-03-15 04:17:22 C 09 43 10.91 +37 12 41.0 u H21
2017-03-15 04:20:19 C 09 43 10.81 +37 12 41.7 u H21
2017-03-15 04:23:15 C 09 43 10.71 +37 12 42.3 u H21
2017-03-15 04:26:39 C 09 43 10.61 +37 12 43.0 u H21
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)