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
2022-02-19 08:13:51 S 10 33 24.214 +30 31 07.14 V C57
2022-02-19 08:13:51 s 1 -14398.589 0 +380766.54 7090.0 C57
2022-02-19 08:23:51 S 10 33 23.395 +30 31 18.95 V C57
2022-02-19 08:23:51 s 1 -14787.497 0 +380719.84 900.0 C57
2022-02-19 08:33:51 S 10 33 22.658 +30 31 30.97 V C57
2022-02-19 08:33:51 s 1 -15176.366 0 +380672.15 4170.0 C57
2022-02-19 08:43:51 S 10 33 21.797 +30 31 43.75 V C57
2022-02-19 08:43:51 s 1 -15565.196 0 +380623.47 6910.0 C57
2022-02-19 08:53:51 S 10 33 20.930 +30 31 55.42 V C57
2022-02-19 08:53:51 s 1 -15953.984 0 +380573.80 9110.0 C57
2022-02-19 09:03:51 S 10 33 20.273 +30 32 07.91 V C57
2022-02-19 09:03:51 s 1 -16342.729 0 +380523.15 770.0 C57
2022-02-19 09:13:51 S 10 33 19.459 +30 32 20.62 V C57
2022-02-19 09:13:51 s 1 -16731.432 0 +380471.51 1890.0 C57
2022-02-19 09:23:51 S 10 33 18.538 +30 32 32.06 V C57
2022-02-19 09:23:51 s 1 -17120.091 0 +380418.87 2450.0 C57
2022-02-19 09:25:06 C 10 32 15.96 +30 30 11.3 U I41
2022-02-19 09:33:51 S 10 33 17.815 +30 32 44.20 V C57
2022-02-19 09:33:51 s 1 -17508.704 0 +380365.25 2460.0 C57
2022-02-19 09:43:51 S 10 33 17.006 +30 32 57.30 V C57
2022-02-19 09:43:51 s 1 -17897.271 0 +380310.64 1920.0 C57
2022-02-19 09:53:51 S 10 33 16.092 +30 33 09.65 V C57
2022-02-19 09:53:51 s 1 -18285.791 0 +380255.04 800.0 C57
2022-02-19 10:03:51 S 10 33 15.259 +30 33 20.45 V C57
2022-02-19 10:03:51 s 1 -18674.263 0 +380198.45 9120.0 C57
2022-02-19 10:13:51 S 10 33 14.544 +30 33 34.06 V C57
2022-02-19 10:13:51 s 1 -19062.685 0 +380140.87 6870.0 C57
2022-02-19 10:23:51 S 10 33 13.709 +30 33 45.43 V C57
2022-02-19 10:23:51 s 1 -19451.057 0 +380082.30 4040.0 C57
2022-02-19 10:23:53 C 10 32 11.18 +30 31 21.9 U I41
2022-02-19 10:28:49 C 10 32 10.77 +30 31 27.8 U I41
2022-02-19 10:29:29 C 10 32 10.71 +30 31 28.6 U I41
2022-02-19 10:33:51 S 10 33 12.859 +30 33 57.56 V C57
2022-02-19 10:33:51 s 1 -19839.378 0 +380022.75 630.0 C57
2022-02-19 10:43:51 S 10 33 12.096 +30 34 11.03 V C57
2022-02-19 10:43:51 s 1 -20227.647 0 +379962.20 6630.0 C57
2022-02-19 10:53:51 S 10 33 11.225 +30 34 22.22 V C57
2022-02-19 10:53:51 s 1 -20615.862 0 +379900.67 2040.0 C57
2022-02-19 11:03:51 S 10 33 10.423 +30 34 34.57 V C57
2022-02-19 11:03:51 s 1 -21004.023 0 +379838.14 6860.0 C57
2022-02-19 11:13:51 S 10 33 09.679 +30 34 47.86 V C57
2022-02-19 11:13:51 s 1 -21392.128 0 +379774.63 1080.0 C57
2022-02-19 11:23:51 S 10 33 08.846 +30 34 58.76 V C57
2022-02-19 11:23:51 s 1 -21780.177 0 +379710.12 4690.0 C57
2022-02-19 11:33:51 S 10 33 07.990 +30 35 10.82 V C57
2022-02-19 11:33:51 s 1 -22168.169 0 +379644.63 7700.0 C57
2022-02-19 11:43:51 S 10 33 07.200 +30 35 23.57 V C57
2022-02-19 11:43:51 s 1 -22556.102 0 +379578.14 90.0 C57
2022-02-19 11:53:51 S 10 33 06.394 +30 35 36.02 V C57
2022-02-19 11:53:51 s 1 -22943.976 0 +379510.67 1860.0 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)