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
2022-02-17 20:23:51 S 10 36 14.602 +29 45 56.48 V C57
2022-02-17 20:23:51 s 1 +68423.861 0 +367777.13 170.0 C57
2022-02-17 20:33:51 S 10 36 13.810 +29 46 08.26 V C57
2022-02-17 20:33:51 s 1 +68050.244 0 +367944.58 5740.0 C57
2022-02-17 20:43:51 S 10 36 13.092 +29 46 22.37 V C57
2022-02-17 20:43:51 s 1 +67676.441 0 +368111.02 870.0 C57
2022-02-17 20:53:51 S 10 36 12.346 +29 46 34.75 V C57
2022-02-17 20:53:51 s 1 +67302.454 0 +368276.44 5550.0 C57
2022-02-17 21:23:51 S 10 36 09.967 +29 47 14.17 V C57
2022-02-17 21:23:51 s 1 +66179.400 0 +368766.62 7040.0 C57
2022-02-17 21:33:51 S 10 36 09.168 +29 47 26.12 V C57
2022-02-17 21:33:51 s 1 +65804.687 0 +368927.99 20.0 C57
2022-02-17 21:43:51 S 10 36 08.479 +29 47 39.88 V C57
2022-02-17 21:43:51 s 1 +65429.797 0 +369088.35 2590.0 C57
2022-02-17 21:53:51 S 10 36 07.685 +29 47 52.33 V C57
2022-02-17 21:53:51 s 1 +65054.728 0 +369247.69 4760.0 C57
2022-02-17 22:03:51 S 10 36 06.871 +29 48 04.82 V C57
2022-02-17 22:03:51 s 1 +64679.484 0 +369406.02 6520.0 C57
2022-02-17 22:13:51 S 10 36 06.110 +29 48 18.79 V C57
2022-02-17 22:13:51 s 1 +64304.065 0 +369563.34 7880.0 C57
2022-02-17 22:23:51 S 10 36 05.302 +29 48 31.00 V C57
2022-02-17 22:23:51 s 1 +63928.471 0 +369719.65 8850.0 C57
2022-02-17 22:33:51 S 10 36 04.560 +29 48 44.03 V C57
2022-02-17 22:33:51 s 1 +63552.705 0 +369874.95 9420.0 C57
2022-02-17 22:43:51 S 10 36 03.792 +29 48 57.82 V C57
2022-02-17 22:43:51 s 1 +63176.767 0 +370029.23 9620.0 C57
2022-02-17 23:13:51 S 10 36 01.426 +29 49 36.95 V C57
2022-02-17 23:13:51 s 1 +62047.935 0 +370486.03 7950.0 C57
2022-02-17 23:23:51 S 10 36 00.636 +29 49 48.22 V C57
2022-02-17 23:23:51 s 1 +61671.322 0 +370636.27 6660.0 C57
2022-02-17 23:33:51 S 10 35 59.947 +29 50 01.72 V C57
2022-02-17 23:33:51 s 1 +61294.543 0 +370785.51 5010.0 C57
2022-02-17 23:43:51 S 10 35 59.146 +29 50 14.53 V C57
2022-02-17 23:43:51 s 1 +60917.599 0 +370933.73 3000.0 C57
2022-02-17 23:53:51 S 10 35 58.296 +29 50 27.10 V C57
2022-02-17 23:53:51 s 1 +60540.491 0 +371080.95 640.0 C57
2022-02-18 00:03:51 S 10 35 57.629 +29 50 40.63 V C57
2022-02-18 00:03:51 s 1 +60163.220 0 +371227.15 7940.0 C57
2022-02-18 00:13:51 S 10 35 56.777 +29 50 53.77 V C57
2022-02-18 00:13:51 s 1 +59785.789 0 +371372.35 4900.0 C57
2022-02-18 00:23:51 S 10 35 55.975 +29 51 05.80 V C57
2022-02-18 00:23:51 s 1 +59408.196 0 +371516.54 1520.0 C57
2022-02-18 00:33:51 S 10 35 55.265 +29 51 19.94 V C57
2022-02-18 00:33:51 s 1 +59030.445 0 +371659.72 7810.0 C57
2022-02-18 00:43:51 S 10 35 54.475 +29 51 32.08 V C57
2022-02-18 00:43:51 s 1 +58652.535 0 +371801.90 3780.0 C57
2022-02-18 00:53:51 S 10 35 53.618 +29 51 43.70 V C57
2022-02-18 00:53:51 s 1 +58274.468 0 +371943.06 9420.0 C57
2022-02-18 01:03:51 S 10 35 52.867 +29 51 58.32 V C57
2022-02-18 01:03:51 s 1 +57896.245 0 +372083.22 4750.0 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)