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
2022-02-21 21:43:51 S 10 28 15.782 +31 42 34.67 V C57
2022-02-21 21:43:51 s 1 -145908.45 0 +295026.16 8310.0 C57
2022-02-21 21:53:51 S 10 28 15.026 +31 42 46.58 V C57
2022-02-21 21:53:51 s 1 -146201.85 4 +294600.38 6300.0 C57
2022-02-21 22:03:51 S 10 28 14.107 +31 42 57.64 V C57
2022-02-21 22:03:51 s 1 -146494.71 1 +294173.50 1500.0 C57
2022-02-21 22:13:51 S 10 28 13.229 +31 43 08.76 V C57
2022-02-21 22:13:51 s 1 -146787.02 0 +293745.52 3890.0 C57
2022-02-21 22:23:51 S 10 28 12.446 +31 43 18.41 V C57
2022-02-21 22:23:51 s 1 -147078.77 8 +293316.44 3460.0 C57
2022-02-21 22:33:51 S 10 28 11.522 +31 43 30.36 V C57
2022-02-21 22:33:51 s 1 -147369.98 4 +292886.26 200.0 C57
2022-02-21 22:43:51 S 10 28 10.697 +31 43 41.56 V C57
2022-02-21 22:43:51 s 1 -147660.63 5 +292454.98 4110.0 C57
2022-02-21 22:53:51 S 10 28 09.859 +31 43 50.84 V C57
2022-02-21 22:53:51 s 1 -147950.72 9 +292022.60 5170.0 C57
2022-02-21 23:03:51 S 10 28 08.930 +31 44 01.46 V C57
2022-02-21 23:03:51 s 1 -148240.26 4 +291589.12 3370.0 C57
2022-02-21 23:13:51 S 10 28 08.153 +31 44 14.24 V C57
2022-02-21 23:13:51 s 1 -148529.23 7 +291154.54 8710.0 C57
2022-02-21 23:23:51 S 10 28 07.327 +31 44 25.33 V C57
2022-02-21 23:23:51 s 1 -148817.64 7 +290718.86 1170.0 C57
2022-02-21 23:33:51 S 10 28 06.379 +31 44 35.12 V C57
2022-02-21 23:33:51 s 1 -149105.49 1 +290282.07 740.0 C57
2022-02-21 23:43:51 S 10 28 05.467 +31 44 45.89 V C57
2022-02-21 23:43:51 s 1 -149392.76 7 +289844.18 7420.0 C57
2022-02-21 23:53:51 S 10 28 04.675 +31 44 57.41 V C57
2022-02-21 23:53:51 s 1 -149679.47 2 +289405.18 1190.0 C57
2022-02-22 00:03:51 S 10 28 03.804 +31 45 08.93 V C57
2022-02-22 00:03:51 s 1 -149965.60 5 +288965.08 2050.0 C57
2022-02-22 00:13:51 S 10 28 02.914 +31 45 18.90 V C57
2022-02-22 00:13:51 s 1 -150251.16 4 +288523.88 9970.0 C57
2022-02-22 00:23:51 S 10 28 02.074 +31 45 30.13 V C57
2022-02-22 00:23:51 s 1 -150536.14 5 +288081.57 4960.0 C57
2022-02-22 00:33:51 S 10 28 01.289 +31 45 41.90 V C57
2022-02-22 00:33:51 s 1 -150820.54 7 +287638.15 7000.0 C57
2022-02-22 00:43:51 S 10 28 00.372 +31 45 52.81 V C57
2022-02-22 00:43:51 s 1 -151104.36 7 +287193.63 6090.0 C57
2022-02-22 00:53:51 S 10 27 59.417 +31 46 02.78 V C57
2022-02-22 00:53:51 s 1 -151387.60 3 +286748.00 2200.0 C57
2022-02-22 01:03:51 S 10 27 58.651 +31 46 13.30 V C57
2022-02-22 01:03:51 s 1 -151670.25 3 +286301.26 5340.0 C57
2022-02-22 01:13:51 S 10 27 57.778 +31 46 25.14 V C57
2022-02-22 01:13:51 s 1 -151952.31 4 +285853.41 5490.0 C57
2022-02-22 01:23:51 S 10 27 56.921 +31 46 34.82 V C57
2022-02-22 01:23:51 s 1 -152233.78 5 +285404.45 2630.0 C57
2022-02-22 01:33:51 S 10 27 56.086 +31 46 44.51 V C57
2022-02-22 01:33:51 s 1 -152514.66 2 +284954.39 6770.0 C57
2022-02-22 01:43:51 S 10 27 55.234 +31 46 56.57 V C57
2022-02-22 01:43:51 s 1 -152794.94 4 +284503.21 7890.0 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)