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
2022-01-14 12:45:07 C 11 17 14.54 +07 36 16.8 V T08
2022-01-14 12:47:47 C 11 17 14.51 +07 36 20.8 V T08
2022-01-14 12:55:57 C 11 17 14.39 +07 36 33.1 V T08
2022-01-17 11:29:50 C 11 16 17.90 +09 24 54.3 V T08
2022-01-17 11:34:30 C 11 16 17.82 +09 25 01.7 V T08
2022-01-17 11:47:38 C 11 16 17.53 +09 25 22.3 V T08
2022-01-17 12:00:55 C 11 16 17.24 +09 25 43.3 V T08
2022-01-18 10:26:30 C 11 15 52.42 +10 01 14.0 V T08
2022-01-18 10:29:09 C 11 15 52.36 +10 01 18.3 V T08
2022-01-18 10:37:08 C 11 15 52.19 +10 01 31.0 V T08
2022-01-18 10:48:25 C 11 15 51.92 +10 01 49.3 V T08
2022-01-22 23:46:30 C 11 13 00.46 +13 00 39.8 V L92
2022-01-22 23:50:46 C 11 13 00.31 +13 00 46.9 V L92
2022-01-22 23:56:04 C 11 13 00.13 +13 00 55.8 V L92
2022-01-23 00:01:23 C 11 12 59.96 +13 01 04.9 V L92
2022-01-23 00:06:43 C 11 12 59.72 +13 01 14.2 V L92
2022-01-23 00:12:02 C 11 12 59.55 +13 01 23.1 V L92
2022-01-23 00:17:21 C 11 12 59.37 +13 01 31.8 V L92
2022-01-24 10:30:48 C 11 11 48.30 +13 59 33.0 V 703
2022-01-24 10:38:25 C 11 11 48.00 +13 59 46.0 V 703
2022-01-24 10:46:01 C 11 11 47.69 +13 59 59.0 V 703
2022-01-24 10:53:38 C 11 11 47.38 +14 00 11.9 V 703
2022-01-24 13:30:20 C 11 11 41.76 +14 04 42.5 V T05
2022-01-24 13:36:32 C 11 11 41.51 +14 04 53.0 V T05
2022-01-24 13:45:14 C 11 11 41.15 +14 05 07.9 V T05
2022-01-24 14:32:47 C 11 11 39.18 +14 06 28.8 V T05
2022-01-25 04:38:32 C 11 11 07.27 +14 30 27.0 V K74
2022-01-25 04:41:33 C 11 11 07.15 +14 30 31.8 V K74
2022-01-25 04:43:35 C 11 11 07.06 +14 30 35.3 V K74
2022-01-26 10:39:27 C 11 09 55.44 +15 22 08.7 V G96
2022-01-26 10:47:33 C 11 09 55.07 +15 22 22.8 V G96
2022-01-26 10:55:41 C 11 09 54.70 +15 22 36.8 V G96
2022-01-26 11:03:47 C 11 09 54.33 +15 22 50.7 V G96
2022-01-26 12:24:59 C 11 09 51.36 +15 25 14.5 V T08
2022-01-26 12:27:39 C 11 09 51.23 +15 25 19.1 V T08
2022-01-26 12:32:57 C 11 09 50.99 +15 25 28.4 V T08
2022-01-26 13:01:33 C 11 09 49.64 +15 26 17.6 V T08
2022-01-27 08:11:07 C 11 09 00.57 +15 59 21.7 V 703
2022-01-27 08:18:44 C 11 09 00.29 +15 59 35.2 V 703
2022-01-27 08:26:21 C 11 08 59.85 +15 59 48.1 V 703
2022-01-27 08:33:57 C 11 08 59.51 +16 00 01.5 V 703
2022-01-27 11:04:27 C 11 08 52.983 +16 04 25.13 U F52
2022-01-27 11:22:00 C 11 08 52.136 +16 04 55.65 U F52
2022-01-27 11:39:33 C 11 08 51.280 +16 05 26.27 U F52
2022-01-27 11:41:05 C 11 08 51.20 +16 05 29.4 V T08
2022-01-27 11:45:53 C 11 08 50.97 +16 05 37.8 V T08
2022-01-27 11:49:52 C 11 08 50.77 +16 05 44.6 V T08
2022-01-27 11:57:02 C 11 08 50.424 +16 05 56.63 U F52
2022-01-27 11:57:11 C 11 08 50.42 +16 05 57.4 V T08
2022-01-27 12:13:30 C 11 08 49.63 +16 06 25.2 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)