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
2022-02-10 07:43:52 s 1 -177301.04 0 + 4300.386 5340.0 C57
2022-02-10 07:53:52 S 10 48 40.138 +25 26 39.66 V C57
2022-02-10 07:53:52 s 1 -176916.32 0 + 3444.623 9080.0 C57
2022-02-10 08:03:52 S 10 48 39.338 +25 26 55.97 V C57
2022-02-10 08:03:52 s 1 -176528.08 5 + 2588.792 7340.0 C57
2022-02-10 08:13:52 S 10 48 38.424 +25 27 11.02 V C57
2022-02-10 08:13:52 s 1 -176136.31 9 + 1732.909 50.0 C57
2022-02-10 08:23:52 S 10 48 37.502 +25 27 25.92 V C57
2022-02-10 08:23:52 s 1 -175741.00 5 + 876.993 7160.0 C57
2022-02-10 08:33:52 S 10 48 36.737 +25 27 42.05 V C57
2022-02-10 08:33:52 s 1 -175342.12 5 + 21.059 8570.0 C57
2022-02-10 08:43:52 S 10 48 35.849 +25 27 57.02 V C57
2022-02-10 08:43:52 s 1 -174939.66 4 - 834.875 4240.0 C57
2022-02-10 08:53:52 S 10 48 35.014 +25 28 12.36 V C57
2022-02-10 08:53:52 s 1 -174533.60 3 - 1690.791 4090.0 C57
2022-02-10 09:03:52 S 10 48 34.198 +25 28 27.19 V C57
2022-02-10 09:03:52 s 1 -174123.92 6 - 2546.671 8050.0 C57
2022-02-10 09:13:52 S 10 48 33.336 +25 28 43.00 V C57
2022-02-10 09:13:52 s 1 -173710.61 5 - 3402.498 6050.0 C57
2022-02-10 09:23:52 S 10 48 32.458 +25 28 58.37 V C57
2022-02-10 09:23:52 s 1 -173293.65 3 - 4258.252 8030.0 C57
2022-02-10 09:33:52 S 10 48 31.560 +25 29 13.31 V C57
2022-02-10 09:33:52 s 1 -172873.02 2 - 5113.916 3910.0 C57
2022-02-10 09:43:52 S 10 48 30.703 +25 29 29.33 V C57
2022-02-10 09:43:52 s 1 -172448.70 6 - 5969.470 3620.0 C57
2022-02-10 09:53:52 S 10 48 29.866 +25 29 44.59 V C57
2022-02-10 09:53:52 s 1 -172020.68 6 - 6824.895 7100.0 C57
2022-02-10 10:03:52 S 10 48 29.047 +25 29 59.10 V C57
2022-02-10 10:03:52 s 1 -171588.94 6 - 7680.172 4280.0 C57
2022-02-10 10:09:39 C 10 48 40.08 +25 30 06.0 V T08
2022-02-10 10:12:18 C 10 48 39.88 +25 30 10.1 V T08
2022-02-10 10:13:52 S 10 48 28.205 +25 30 15.05 V C57
2022-02-10 10:13:52 s 1 -171153.46 7 - 8535.281 5080.0 C57
2022-02-10 10:21:53 C 10 48 39.14 +25 30 25.2 V T08
2022-02-10 10:23:52 S 10 48 27.360 +25 30 30.17 V C57
2022-02-10 10:23:52 s 1 -170714.23 3 - 9390.203 9440.0 C57
2022-02-10 10:29:24 C 10 48 38.55 +25 30 37.0 V T08
2022-02-10 10:33:52 S 10 48 26.460 +25 30 45.65 V C57
2022-02-10 10:33:52 s 1 -170271.22 5 -10244.916 7290.0 C57
2022-02-10 10:43:52 S 10 48 25.591 +25 31 00.59 V C57
2022-02-10 10:43:52 s 1 -169824.42 6 -11099.400 8550.0 C57
2022-02-10 10:53:52 S 10 48 24.698 +25 31 16.07 V C57
2022-02-10 10:53:52 s 1 -169373.81 8 -11953.635 3160.0 C57
2022-02-10 11:03:52 S 10 48 23.904 +25 31 32.30 V C57
2022-02-10 11:03:52 s 1 -168919.38 4 -12807.599 1050.0 C57
2022-02-10 11:13:52 S 10 48 23.014 +25 31 47.89 V C57
2022-02-10 11:13:52 s 1 -168461.10 5 -13661.271 2140.0 C57
2022-02-10 11:23:52 S 10 48 22.202 +25 32 02.33 V C57
2022-02-10 11:23:52 s 1 -167998.96 5 -14514.630 6370.0 C57
2022-02-10 11:33:52 S 10 48 21.350 +25 32 17.41 V C57
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)