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 16:13:51 S 10 36 33.924 +29 40 31.12 V C57
2022-02-17 16:13:51 s 1 +77700.619 0 +363260.45 2460.0 C57
2022-02-17 16:23:51 S 10 36 33.103 +29 40 43.97 V C57
2022-02-17 16:23:51 s 1 +77332.018 0 +363453.35 730.0 C57
2022-02-17 16:33:51 S 10 36 32.345 +29 40 58.40 V C57
2022-02-17 16:33:51 s 1 +76963.202 0 +363645.23 8430.0 C57
2022-02-17 16:43:51 S 10 36 31.570 +29 41 10.25 V C57
2022-02-17 16:43:51 s 1 +76594.172 0 +363836.08 5560.0 C57
2022-02-17 16:53:51 S 10 36 30.782 +29 41 23.39 V C57
2022-02-17 16:53:51 s 1 +76224.930 0 +364025.91 2140.0 C57
2022-02-17 17:03:51 S 10 36 30.074 +29 41 36.13 V C57
2022-02-17 17:03:51 s 1 +75855.476 0 +364214.73 8160.0 C57
2022-02-17 17:13:51 S 10 36 29.239 +29 41 48.48 V C57
2022-02-17 17:13:51 s 1 +75485.813 0 +364402.52 3630.0 C57
2022-02-17 17:23:51 S 10 36 28.538 +29 42 02.20 V C57
2022-02-17 17:23:51 s 1 +75115.940 0 +364589.29 8560.0 C57
2022-02-17 17:33:51 S 10 36 27.768 +29 42 15.98 V C57
2022-02-17 17:33:51 s 1 +74745.860 0 +364775.05 2950.0 C57
2022-02-17 17:43:51 S 10 36 26.894 +29 42 28.33 V C57
2022-02-17 17:43:51 s 1 +74375.573 0 +364959.78 6810.0 C57
2022-02-17 17:53:51 S 10 36 26.172 +29 42 41.65 V C57
2022-02-17 17:53:51 s 1 +74005.081 0 +365143.49 140.0 C57
2022-02-17 18:03:51 S 10 36 25.370 +29 42 54.97 V C57
2022-02-17 18:03:51 s 1 +73634.384 0 +365326.19 2950.0 C57
2022-02-17 18:13:51 S 10 36 24.646 +29 43 07.28 V C57
2022-02-17 18:13:51 s 1 +73263.485 0 +365507.87 5240.0 C57
2022-02-17 18:23:51 S 10 36 23.914 +29 43 21.40 V C57
2022-02-17 18:23:51 s 1 +72892.384 0 +365688.53 7020.0 C57
2022-02-17 18:33:51 S 10 36 23.083 +29 43 33.28 V C57
2022-02-17 18:33:51 s 1 +72521.082 0 +365868.17 8290.0 C57
2022-02-17 18:43:51 S 10 36 22.303 +29 43 46.02 V C57
2022-02-17 18:43:51 s 1 +72149.581 0 +366046.79 9050.0 C57
2022-02-17 18:53:51 S 10 36 21.598 +29 43 59.95 V C57
2022-02-17 18:53:51 s 1 +71777.882 0 +366224.40 9320.0 C57
2022-02-17 19:03:51 S 10 36 20.810 +29 44 11.58 V C57
2022-02-17 19:03:51 s 1 +71405.986 0 +366400.99 9100.0 C57
2022-02-17 19:13:51 S 10 36 20.021 +29 44 24.97 V C57
2022-02-17 19:13:51 s 1 +71033.893 0 +366576.56 8390.0 C57
2022-02-17 19:23:51 S 10 36 19.205 +29 44 39.16 V C57
2022-02-17 19:23:51 s 1 +70661.606 0 +366751.12 7190.0 C57
2022-02-17 19:33:51 S 10 36 18.490 +29 44 50.57 V C57
2022-02-17 19:33:51 s 1 +70289.126 0 +366924.66 5520.0 C57
2022-02-17 19:43:51 S 10 36 17.722 +29 45 03.92 V C57
2022-02-17 19:43:51 s 1 +69916.453 0 +367097.19 3380.0 C57
2022-02-17 19:53:51 S 10 36 16.927 +29 45 17.68 V C57
2022-02-17 19:53:51 s 1 +69543.589 0 +367268.69 760.0 C57
2022-02-17 20:03:51 S 10 36 16.152 +29 45 29.20 V C57
2022-02-17 20:03:51 s 1 +69170.535 0 +367439.19 7690.0 C57
2022-02-17 20:13:51 S 10 36 15.437 +29 45 44.03 V C57
2022-02-17 20:13:51 s 1 +68797.292 0 +367608.67 4160.0 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)