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
2024-04-20 17:13:01 s 1 +29318.125 0 +235431.42 7200.0 C57
2024-04-20 17:33:01 S 15 07 36.622 +25 43 36.70 V C57
2024-04-20 17:33:01 s 1 +28236.091 0 +234676.90 530.0 C57
2024-04-20 17:53:01 S 15 07 35.640 +25 43 45.95 V C57
2024-04-20 17:53:01 s 1 +27153.063 0 +233913.81 3420.0 C57
2024-04-20 18:13:01 S 15 07 34.567 +25 43 57.22 V C57
2024-04-20 18:13:01 s 1 +26069.079 0 +233142.15 5550.0 C57
2024-04-20 18:33:01 S 15 07 33.199 +25 44 08.63 V C57
2024-04-20 18:33:01 s 1 +24984.161 0 +232361.81 6120.0 C57
2024-04-20 19:33:01 S 15 07 29.465 +25 44 40.13 V C57
2024-04-20 19:33:01 s 1 +21724.178 0 +229968.65 4640.0 C57
2024-04-20 19:53:01 S 15 07 28.243 +25 44 50.06 V C57
2024-04-20 19:53:01 s 1 +20635.885 0 +229153.41 4630.0 C57
2024-04-20 20:13:01 S 15 07 26.988 +25 45 01.62 V C57
2024-04-20 20:13:01 s 1 +19546.839 0 +228329.41 890.0 C57
2024-04-20 20:33:01 S 15 07 25.884 +25 45 13.46 V C57
2024-04-20 20:33:01 s 1 +18457.069 0 +227496.52 2540.0 C57
2024-04-20 20:53:01 S 15 07 24.706 +25 45 22.75 V C57
2024-04-20 20:53:01 s 1 +17366.615 0 +226654.76 9240.0 C57
2024-04-20 21:13:01 S 15 07 23.544 +25 45 32.90 V C57
2024-04-20 21:13:01 s 1 +16275.518 0 +225804.13 630.0 C57
2024-04-20 21:33:01 S 15 07 22.140 +25 45 41.80 V C57
2024-04-20 21:33:01 s 1 +15183.808 0 +224944.52 5820.0 C57
2024-04-21 01:53:01 S 15 07 06.218 +25 48 08.06 V C57
2024-04-21 02:13:01 S 15 07 04.930 +25 48 17.14 V C57
2024-04-21 02:33:01 S 15 07 03.881 +25 48 27.36 V C57
2024-04-21 02:53:01 S 15 07 02.542 +25 48 38.88 V C57
2024-04-21 03:13:01 S 15 07 01.306 +25 48 47.56 V C57
2024-04-21 03:53:01 S 15 06 58.937 +25 49 12.65 V C57
2024-04-21 04:13:01 S 15 06 57.485 +25 49 22.30 V C57
2024-04-21 04:33:01 S 15 06 56.340 +25 49 32.45 V C57
2024-04-21 04:53:01 S 15 06 55.056 +25 49 42.28 V C57
2024-04-21 05:13:01 S 15 06 53.765 +25 49 53.80 V C57
2024-04-21 05:33:01 S 15 06 52.726 +25 50 06.79 V C57
2024-04-21 05:33:01 s 1 -11089.820 0 +201545.89 0.255 C57
2024-04-21 05:53:01 S 15 06 51.358 +25 50 16.37 V C57
2024-04-21 05:53:01 s 1 -12182.464 0 +200452.10 0.44 C57
2024-04-21 06:13:01 S 15 06 50.030 +25 50 28.39 V C57
2024-04-21 06:13:01 s 1 -13274.487 0 +199348.58 0.426 C57
2024-04-21 06:33:01 S 15 06 48.794 +25 50 36.24 V C57
2024-04-21 06:33:01 s 1 -14365.825 0 +198235.21 0.088 C57
2024-04-21 06:53:01 S 15 06 47.407 +25 50 49.52 V C57
2024-04-21 06:53:01 s 1 -15456.422 0 +197112.01 0.38 C57
2024-04-21 07:13:01 S 15 06 46.183 +25 51 00.25 V C57
2024-04-21 07:13:01 s 1 -16546.222 0 +195978.99 0.255 C57
2024-04-21 07:16:38 C 15 06 31.572 +25 54 31.72 Z U76
2024-04-21 07:32:57 C 15 06 30.533 +25 54 40.32 Z U76
2024-04-21 07:33:01 S 15 06 45.065 +25 51 11.34 V C57
2024-04-21 07:33:01 s 1 -17635.154 0 +194836.04 0.583 C57
2024-04-21 07:49:18 C 15 06 29.482 +25 54 49.28 Z U76
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)