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
2022-02-15 20:33:51 S 10 39 47.431 +28 41 54.60 V C57
2022-02-15 20:33:51 s 1 +162578.53 9 +276293.11 7700.0 C57
2022-02-15 20:43:51 S 10 39 46.618 +28 42 07.88 V C57
2022-02-15 20:43:51 s 1 +162318.27 8 +276768.74 7180.0 C57
2022-02-15 20:53:51 S 10 39 45.989 +28 42 22.00 V C57
2022-02-15 20:53:51 s 1 +162057.34 8 +277243.22 4160.0 C57
2022-02-15 21:03:51 S 10 39 45.238 +28 42 35.86 V C57
2022-02-15 21:03:51 s 1 +161795.75 2 +277716.54 8630.0 C57
2022-02-15 21:13:51 S 10 39 44.503 +28 42 49.07 V C57
2022-02-15 21:13:51 s 1 +161533.49 2 +278188.72 610.0 C57
2022-02-15 21:23:51 S 10 39 43.870 +28 43 03.83 V C57
2022-02-15 21:23:51 s 1 +161270.57 1 +278659.74 120.0 C57
2022-02-15 21:33:51 S 10 39 43.090 +28 43 16.03 V C57
2022-02-15 21:33:51 s 1 +161006.99 2 +279129.61 7170.0 C57
2022-02-15 21:43:51 S 10 39 42.389 +28 43 31.33 V C57
2022-02-15 21:43:51 s 1 +160742.75 6 +279598.34 1760.0 C57
2022-02-15 21:53:51 S 10 39 41.652 +28 43 44.69 V C57
2022-02-15 21:53:51 s 1 +160477.86 6 +280065.92 3900.0 C57
2022-02-15 22:03:51 S 10 39 41.064 +28 43 57.36 V C57
2022-02-15 22:03:51 s 1 +160212.32 6 +280532.35 3620.0 C57
2022-02-15 22:13:51 S 10 39 40.337 +28 44 12.48 V C57
2022-02-15 22:13:51 s 1 +159946.13 7 +280997.64 910.0 C57
2022-02-15 22:23:51 S 10 39 39.574 +28 44 25.69 V C57
2022-02-15 22:23:51 s 1 +159679.30 2 +281461.78 5790.0 C57
2022-02-15 22:33:51 S 10 39 38.914 +28 44 40.34 V C57
2022-02-15 22:33:51 s 1 +159411.82 3 +281924.77 8270.0 C57
2022-02-15 22:43:51 S 10 39 38.194 +28 44 53.20 V C57
2022-02-15 22:43:51 s 1 +159143.70 4 +282386.62 8360.0 C57
2022-02-15 22:53:51 S 10 39 37.402 +28 45 07.06 V C57
2022-02-15 22:53:51 s 1 +158874.94 6 +282847.33 6070.0 C57
2022-02-15 23:03:51 S 10 39 36.826 +28 45 21.60 V C57
2022-02-15 23:03:51 s 1 +158605.55 2 +283306.89 1420.0 C57
2022-02-15 23:43:51 S 10 39 33.883 +28 46 15.17 V C57
2022-02-15 23:43:51 s 1 +157521.66 4 +285133.72 9320.0 C57
2022-02-15 23:53:51 S 10 39 33.202 +28 46 30.40 V C57
2022-02-15 23:53:51 s 1 +157249.12 7 +285587.57 2980.0 C57
2022-02-16 00:33:51 S 10 39 30.319 +28 47 24.61 V C57
2022-02-16 00:33:51 s 1 +156152.78 6 +287391.61 4670.0 C57
2022-02-16 00:43:51 S 10 39 29.693 +28 47 38.65 V C57
2022-02-16 00:43:51 s 1 +155877.16 6 +287839.77 6910.0 C57
2022-02-16 00:53:51 S 10 39 28.898 +28 47 51.61 V C57
2022-02-16 00:53:51 s 1 +155600.93 6 +288286.80 6890.0 C57
2022-02-16 01:03:51 S 10 39 28.238 +28 48 05.98 V C57
2022-02-16 01:03:51 s 1 +155324.09 9 +288732.69 4620.0 C57
2022-02-16 01:13:51 S 10 39 27.490 +28 48 19.04 V C57
2022-02-16 01:13:51 s 1 +155046.65 7 +289177.45 130.0 C57
2022-02-16 01:23:51 S 10 39 26.798 +28 48 32.83 V C57
2022-02-16 01:23:51 s 1 +154768.61 3 +289621.08 3410.0 C57
2022-02-16 01:33:51 S 10 39 26.076 +28 48 47.52 V C57
2022-02-16 01:33:51 s 1 +154489.96 9 +290063.56 4470.0 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)