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 13:13:51 S 10 28 59.498 +31 33 11.63 V C57
2022-02-21 13:13:51 s 1 -130269.07 2 +315297.34 8910.0 C57
2022-02-21 13:23:51 S 10 28 58.639 +31 33 22.03 V C57
2022-02-21 13:23:51 s 1 -130587.62 9 +314926.87 7420.0 C57
2022-02-21 13:33:51 S 10 28 57.686 +31 33 32.94 V C57
2022-02-21 13:33:51 s 1 -130905.74 2 +314555.33 3590.0 C57
2022-02-21 13:43:51 S 10 28 56.923 +31 33 45.04 V C57
2022-02-21 13:43:51 s 1 -131223.40 8 +314182.71 7400.0 C57
2022-02-21 13:53:51 S 10 28 56.038 +31 33 56.23 V C57
2022-02-21 13:53:51 s 1 -131540.62 4 +313809.02 8860.0 C57
2022-02-21 14:03:51 S 10 28 55.164 +31 34 07.00 V C57
2022-02-21 14:03:51 s 1 -131857.39 0 +313434.26 7950.0 C57
2022-02-21 14:13:51 S 10 28 54.281 +31 34 17.36 V C57
2022-02-21 14:13:51 s 1 -132173.70 4 +313058.42 4670.0 C57
2022-02-21 14:23:51 S 10 28 53.482 +31 34 29.60 V C57
2022-02-21 14:23:51 s 1 -132489.56 3 +312681.51 9000.0 C57
2022-02-21 14:33:51 S 10 28 52.610 +31 34 40.84 V C57
2022-02-21 14:33:51 s 1 -132804.96 6 +312303.52 940.0 C57
2022-02-21 14:43:51 S 10 28 51.737 +31 34 51.38 V C57
2022-02-21 14:43:51 s 1 -133119.91 0 +311924.46 470.0 C57
2022-02-21 14:53:51 S 10 28 50.926 +31 35 02.36 V C57
2022-02-21 14:53:51 s 1 -133434.39 5 +311544.32 7600.0 C57
2022-02-21 15:03:51 S 10 28 50.098 +31 35 14.06 V C57
2022-02-21 15:03:51 s 1 -133748.41 8 +311163.11 2310.0 C57
2022-02-21 15:13:51 S 10 28 49.154 +31 35 25.15 V C57
2022-02-21 15:13:51 s 1 -134061.97 7 +310780.82 4600.0 C57
2022-02-21 15:23:51 S 10 28 48.324 +31 35 35.38 V C57
2022-02-21 15:23:51 s 1 -134375.07 1 +310397.45 4450.0 C57
2022-02-21 15:33:51 S 10 28 47.513 +31 35 47.18 V C57
2022-02-21 15:33:51 s 1 -134687.69 7 +310013.00 1860.0 C57
2022-02-21 15:43:51 S 10 28 46.642 +31 35 58.49 V C57
2022-02-21 15:43:51 s 1 -134999.85 4 +309627.48 6810.0 C57
2022-02-21 15:53:51 S 10 28 45.799 +31 36 09.36 V C57
2022-02-21 15:53:51 s 1 -135311.53 9 +309240.88 9310.0 C57
2022-02-21 16:13:51 S 10 28 44.078 +31 36 31.90 V C57
2022-02-21 16:13:51 s 1 -135933.48 9 +308464.43 6890.0 C57
2022-02-21 16:23:51 S 10 28 43.219 +31 36 43.09 V C57
2022-02-21 16:23:51 s 1 -136243.75 0 +308074.59 1950.0 C57
2022-02-21 16:33:51 S 10 28 42.379 +31 36 53.03 V C57
2022-02-21 16:33:51 s 1 -136553.53 1 +307683.67 4520.0 C57
2022-02-21 16:43:51 S 10 28 41.486 +31 37 04.58 V C57
2022-02-21 16:43:51 s 1 -136862.83 2 +307291.66 4590.0 C57
2022-02-21 16:53:51 S 10 28 40.685 +31 37 16.72 V C57
2022-02-21 16:53:51 s 1 -137171.65 0 +306898.58 2150.0 C57
2022-02-21 17:03:51 S 10 28 39.842 +31 37 26.87 V C57
2022-02-21 17:03:51 s 1 -137479.98 4 +306504.41 7180.0 C57
2022-02-21 17:13:51 S 10 28 38.959 +31 37 37.45 V C57
2022-02-21 17:13:51 s 1 -137787.83 0 +306109.16 9690.0 C57
2022-02-21 17:23:51 S 10 28 38.088 +31 37 48.61 V C57
2022-02-21 17:23:51 s 1 -138095.18 9 +305712.82 9650.0 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)