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
2017-01-05 03:10:56 C 11 06 51.03 +01 47 20.8 q 160
2017-01-05 03:12:58 C 11 06 51.03 +01 47 23.9 q 160
2017-01-05 23:54:29 C 11 06 58.69 +02 15 26.2 o 107
2017-01-06 00:01:54 C 11 06 58.68 +02 15 36.1 o 107
2017-01-06 00:08:46 C 11 06 58.70 +02 15 45.5 o 107
2017-01-07 02:31:00 C 11 07 03.24 +02 52 19.0 q 160
2017-01-07 02:33:06 C 11 07 03.23 +02 52 21.9 q 160
2017-01-07 02:35:06 C 11 07 03.23 +02 52 25.4 q 160
2017-01-08 09:46:23 C 11 07 03.60 +03 36 51.5 q 703
2017-01-08 10:11:12 C 11 07 03.48 +03 37 27.4 q 703
2017-01-08 10:18:03 C 11 07 03.44 +03 37 37.6 q 703
2017-01-08 10:24:54 C 11 07 03.41 +03 37 47.4 q 703
2017-01-21 02:27:26 C 11 01 22.45 +11 51 03.2 q 160
2017-01-21 02:29:21 C 11 01 22.37 +11 51 06.7 q 160
2017-01-21 02:31:16 C 11 01 22.29 +11 51 09.9 q 160
2017-01-23 08:17:06 C 10 59 16.23 +13 27 14.4 R G45
2017-01-23 08:23:57 C 10 59 15.91 +13 27 26.7 R G45
2017-01-23 08:31:18 C 10 59 15.57 +13 27 40.0 R G45
2017-01-23 08:46:04 C 10 59 14.89 +13 28 06.5 R G45
2017-01-23 08:53:19 C 10 59 14.54 +13 28 19.9 R G45
2017-01-23 14:14:41 C 10 59 00.28 +13 38 02.8 L T05
2017-01-23 14:50:09 C 10 58 58.59 +13 39 06.4 L T05
2017-01-23 15:21:10 C 10 58 57.13 +13 40 02.2 L T05
2017-01-23 15:23:56 C 10 58 57.00 +13 40 07.1 L T05
2017-01-23 19:50:04 C 10 58 45.53 +13 48 03.6 q Q11
2017-01-23 19:55:09 C 10 58 45.29 +13 48 12.7 q Q11
2017-01-23 19:59:13 C 10 58 45.10 +13 48 20.1 q Q11
2017-01-26 10:51:48 C 10 55 47.99 +15 42 34.0 q G96
2017-01-26 10:58:03 C 10 55 47.65 +15 42 45.3 q G96
2017-01-26 11:04:13 C 10 55 47.25 +15 42 57.2 q G96
2017-01-26 11:10:33 C 10 55 46.93 +15 43 08.9 q G96
2017-01-26 11:50:04 C 10 55 44.72 +15 44 19.4 R G45
2017-01-26 11:56:50 C 10 55 44.36 +15 44 31.6 R G45
2017-01-26 12:04:13 C 10 55 43.97 +15 44 45.0 R G45
2017-01-26 12:11:37 C 10 55 43.56 +15 44 58.4 R G45
2017-01-26 12:19:43 C 10 55 43.13 +15 45 13.3 R G45
2017-01-27 02:48:20 C 10 54 58.92 +16 11 36.1 q 160
2017-01-27 02:50:25 C 10 54 58.81 +16 11 40.4 q 160
2017-01-27 02:53:36 C 10 54 58.68 +16 11 45.3 q 160
2017-01-28 12:32:43 C 10 53 10.21 +17 13 18.3 L T05
2017-01-28 13:04:17 C 10 53 08.30 +17 14 15.9 L T05
2017-01-28 13:14:09 C 10 53 07.70 +17 14 33.9 L T05
2017-01-28 13:34:12 C 10 53 06.48 +17 15 10.4 L T05
2017-01-29 08:21:40 C 10 52 03.28 +17 49 22.4 q 703
2017-01-29 08:27:55 C 10 52 02.89 +17 49 34.0 q 703
2017-01-29 08:34:05 C 10 52 02.51 +17 49 45.3 q 703
2017-01-29 08:43:43 C 10 52 01.91 +17 50 02.8 q 703
2017-01-31 13:47:22 C 10 48 50.256 +19 26 17.52 L F51
2017-01-31 14:06:13 C 10 48 49.006 +19 26 50.96 L F51
2017-01-31 14:25:17 C 10 48 47.729 +19 27 25.17 L F51
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)