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
2022-02-16 19:03:51 S 10 38 09.660 +29 12 31.39 V C57
2022-02-16 19:03:51 s 1 +122314.85 5 +330334.88 1200.0 C57
2022-02-16 19:13:51 S 10 38 08.959 +29 12 46.15 V C57
2022-02-16 19:13:51 s 1 +121984.30 5 +330660.54 7640.0 C57
2022-02-16 19:23:51 S 10 38 08.158 +29 12 58.39 V C57
2022-02-16 19:23:51 s 1 +121653.36 3 +330985.13 2750.0 C57
2022-02-16 19:33:51 S 10 38 07.483 +29 13 12.40 V C57
2022-02-16 19:33:51 s 1 +121322.03 1 +331308.64 6550.0 C57
2022-02-16 19:43:51 S 10 38 06.691 +29 13 25.61 V C57
2022-02-16 19:43:51 s 1 +120990.31 0 +331631.09 9040.0 C57
2022-02-16 19:53:51 S 10 38 05.882 +29 13 38.60 V C57
2022-02-16 19:53:51 s 1 +120658.20 2 +331952.46 230.0 C57
2022-02-16 20:03:51 S 10 38 05.285 +29 13 53.11 V C57
2022-02-16 20:03:51 s 1 +120325.70 8 +332272.76 120.0 C57
2022-02-16 20:13:51 S 10 38 04.466 +29 14 05.82 V C57
2022-02-16 20:13:51 s 1 +119992.83 1 +332591.99 8720.0 C57
2022-02-16 20:23:51 S 10 38 03.746 +29 14 19.07 V C57
2022-02-16 20:23:51 s 1 +119659.57 2 +332910.15 6040.0 C57
2022-02-16 20:33:51 S 10 38 03.053 +29 14 33.32 V C57
2022-02-16 20:33:51 s 1 +119325.93 3 +333227.24 2080.0 C57
2022-02-16 20:43:51 S 10 38 02.287 +29 14 45.38 V C57
2022-02-16 20:43:51 s 1 +118991.91 4 +333543.27 6850.0 C57
2022-02-16 20:53:51 S 10 38 01.570 +29 14 59.78 V C57
2022-02-16 20:53:51 s 1 +118657.51 8 +333858.22 360.0 C57
2022-02-16 21:03:51 S 10 38 00.758 +29 15 13.43 V C57
2022-02-16 21:03:51 s 1 +118322.74 7 +334172.11 2620.0 C57
2022-02-16 21:13:51 S 10 38 00.070 +29 15 25.38 V C57
2022-02-16 21:13:51 s 1 +117987.60 1 +334484.92 3630.0 C57
2022-02-16 21:23:51 S 10 37 59.338 +29 15 39.74 V C57
2022-02-16 21:23:51 s 1 +117652.08 3 +334796.68 3390.0 C57
2022-02-16 21:33:51 S 10 37 58.459 +29 15 52.99 V C57
2022-02-16 21:33:51 s 1 +117316.19 3 +335107.36 1930.0 C57
2022-02-16 21:43:51 S 10 37 57.792 +29 16 05.84 V C57
2022-02-16 21:43:51 s 1 +116979.93 5 +335416.98 9230.0 C57
2022-02-16 21:53:51 S 10 37 57.086 +29 16 20.39 V C57
2022-02-16 21:53:51 s 1 +116643.30 8 +335725.53 5310.0 C57
2022-02-16 22:03:51 S 10 37 56.244 +29 16 33.42 V C57
2022-02-16 22:03:51 s 1 +116306.31 5 +336033.02 180.0 C57
2022-02-16 22:13:51 S 10 37 55.582 +29 16 47.39 V C57
2022-02-16 22:13:51 s 1 +115968.95 7 +336339.45 3830.0 C57
2022-02-16 22:23:51 S 10 37 54.818 +29 16 59.66 V C57
2022-02-16 22:23:51 s 1 +115631.23 6 +336644.81 6290.0 C57
2022-02-16 22:33:51 S 10 37 54.058 +29 17 12.77 V C57
2022-02-16 22:33:51 s 1 +115293.15 4 +336949.10 7550.0 C57
2022-02-16 22:43:51 S 10 37 53.338 +29 17 27.06 V C57
2022-02-16 22:43:51 s 1 +114954.71 1 +337252.34 7620.0 C57
2022-02-16 22:53:51 S 10 37 52.586 +29 17 39.37 V C57
2022-02-16 22:53:51 s 1 +114615.91 0 +337554.51 6510.0 C57
2022-02-16 23:03:51 S 10 37 51.866 +29 17 53.16 V C57
2022-02-16 23:03:51 s 1 +114276.75 2 +337855.61 4230.0 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)