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
2022-02-18 18:43:51 S 10 34 29.431 +30 14 23.32 V C57
2022-02-18 18:43:51 s 1 +17140.391 0 +381265.99 9670.0 C57
2022-02-18 18:53:51 S 10 34 28.529 +30 14 34.76 V C57
2022-02-18 18:53:51 s 1 +16751.656 0 +381299.39 1660.0 C57
2022-02-18 19:03:51 S 10 34 27.809 +30 14 47.69 V C57
2022-02-18 19:03:51 s 1 +16362.879 0 +381331.81 3470.0 C57
2022-02-18 19:13:51 S 10 34 27.053 +30 15 00.86 V C57
2022-02-18 19:13:51 s 1 +15974.060 0 +381363.23 5110.0 C57
2022-02-18 19:23:51 S 10 34 26.153 +30 15 13.39 V C57
2022-02-18 19:23:51 s 1 +15585.201 0 +381393.66 6560.0 C57
2022-02-18 19:33:51 S 10 34 25.322 +30 15 25.56 V C57
2022-02-18 19:33:51 s 1 +15196.302 0 +381423.11 7830.0 C57
2022-02-18 19:43:51 S 10 34 24.617 +30 15 38.20 V C57
2022-02-18 19:43:51 s 1 +14807.366 0 +381451.56 8910.0 C57
2022-02-18 19:53:51 S 10 34 23.791 +30 15 50.94 V C57
2022-02-18 19:53:51 s 1 +14418.392 0 +381479.02 9790.0 C57
2022-02-18 20:03:51 S 10 34 22.939 +30 16 02.82 V C57
2022-02-18 20:03:51 s 1 +14029.381 0 +381505.49 470.0 C57
2022-02-18 20:43:51 S 10 34 19.807 +30 16 53.54 V C57
2022-02-18 20:43:51 s 1 +12472.996 0 +381601.48 1130.0 C57
2022-02-18 20:53:51 S 10 34 19.006 +30 17 05.68 V C57
2022-02-18 20:53:51 s 1 +12083.819 0 +381623.00 750.0 C57
2022-02-18 21:03:51 S 10 34 18.142 +30 17 18.13 V C57
2022-02-18 21:03:51 s 1 +11694.612 0 +381643.53 140.0 C57
2022-02-18 21:13:51 S 10 34 17.448 +30 17 31.24 V C57
2022-02-18 21:13:51 s 1 +11305.376 0 +381663.07 9310.0 C57
2022-02-18 21:23:51 S 10 34 16.618 +30 17 43.62 V C57
2022-02-18 21:23:51 s 1 +10916.111 0 +381681.63 8240.0 C57
2022-02-18 21:33:51 S 10 34 15.749 +30 17 54.85 V C57
2022-02-18 21:33:51 s 1 +10526.819 0 +381699.19 6940.0 C57
2022-02-18 21:43:51 S 10 34 14.966 +30 18 08.68 V C57
2022-02-18 21:43:51 s 1 +10137.501 0 +381715.76 5390.0 C57
2022-02-18 21:53:51 S 10 34 14.218 +30 18 20.12 V C57
2022-02-18 22:03:51 S 10 34 13.385 +30 18 31.86 V C57
2022-02-18 22:13:51 S 10 34 12.550 +30 18 46.19 V C57
2022-02-18 22:23:51 S 10 34 11.707 +30 18 58.36 V C57
2022-02-18 22:33:51 S 10 34 10.973 +30 19 09.70 V C57
2022-02-18 23:23:51 S 10 34 06.984 +30 20 12.95 V C57
2022-02-18 23:33:51 S 10 34 06.182 +30 20 24.00 V C57
2022-02-18 23:43:51 S 10 34 05.424 +30 20 37.21 V C57
2022-02-18 23:53:51 S 10 34 04.574 +30 20 50.17 V C57
2022-02-19 00:03:51 S 10 34 03.763 +30 21 01.33 V C57
2022-02-19 00:13:51 S 10 34 02.954 +30 21 14.15 V C57
2022-02-19 00:33:51 S 10 34 01.330 +30 21 39.20 V C57
2022-02-19 00:43:51 S 10 34 00.514 +30 21 51.41 V C57
2022-02-19 00:53:51 S 10 33 59.710 +30 22 04.87 V C57
2022-02-19 01:03:51 S 10 33 58.846 +30 22 16.82 V C57
2022-02-19 01:13:51 S 10 33 58.162 +30 22 28.24 V C57
2022-02-19 01:23:51 S 10 33 57.398 +30 22 41.56 V C57
2022-02-19 01:33:51 S 10 33 56.477 +30 22 53.83 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)