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 05:23:51 S 10 29 39.367 +31 24 23.08 V C57
2022-02-21 05:23:51 s 1 -114826.80 8 +331509.08 1470.0 C57
2022-02-21 05:33:51 S 10 29 38.484 +31 24 33.98 V C57
2022-02-21 05:33:51 s 1 -115164.34 4 +331188.46 1300.0 C57
2022-02-21 05:43:51 S 10 29 37.721 +31 24 46.44 V C57
2022-02-21 05:43:51 s 1 -115501.51 3 +330866.80 9150.0 C57
2022-02-21 05:53:51 S 10 29 36.818 +31 24 57.17 V C57
2022-02-21 05:53:51 s 1 -115838.31 6 +330544.08 5000.0 C57
2022-02-21 06:03:51 S 10 29 35.976 +31 25 08.26 V C57
2022-02-21 06:03:51 s 1 -116174.74 9 +330220.31 8860.0 C57
2022-02-21 06:13:51 S 10 29 35.134 +31 25 19.45 V C57
2022-02-21 06:13:51 s 1 -116510.81 2 +329895.49 710.0 C57
2022-02-21 06:23:51 S 10 29 34.368 +31 25 31.40 V C57
2022-02-21 06:23:51 s 1 -116846.50 2 +329569.62 550.0 C57
2022-02-21 06:33:51 S 10 29 33.410 +31 25 42.46 V C57
2022-02-21 06:33:51 s 1 -117181.81 9 +329242.69 8360.0 C57
2022-02-21 06:43:51 S 10 29 32.558 +31 25 53.47 V C57
2022-02-21 06:43:51 s 1 -117516.76 0 +328914.71 4150.0 C57
2022-02-21 06:53:51 S 10 29 31.766 +31 26 05.32 V C57
2022-02-21 06:53:51 s 1 -117851.32 4 +328585.68 7900.0 C57
2022-02-21 07:03:51 S 10 29 30.977 +31 26 16.40 V C57
2022-02-21 07:03:51 s 1 -118185.51 0 +328255.59 9610.0 C57
2022-02-21 07:13:51 S 10 29 30.074 +31 26 27.67 V C57
2022-02-21 07:13:51 s 1 -118519.31 5 +327924.45 9280.0 C57
2022-02-21 07:23:51 S 10 29 29.172 +31 26 37.82 V C57
2022-02-21 07:23:51 s 1 -118852.73 9 +327592.25 6880.0 C57
2022-02-21 07:33:51 S 10 29 28.368 +31 26 50.39 V C57
2022-02-21 07:33:51 s 1 -119185.77 9 +327259.00 2420.0 C57
2022-02-21 07:43:51 S 10 29 27.473 +31 27 01.44 V C57
2022-02-21 07:43:51 s 1 -119518.43 4 +326924.70 5890.0 C57
2022-02-21 07:53:51 S 10 29 26.678 +31 27 12.13 V C57
2022-02-21 07:53:51 s 1 -119850.70 3 +326589.33 7280.0 C57
2022-02-21 08:03:51 S 10 29 25.802 +31 27 23.40 V C57
2022-02-21 08:03:51 s 1 -120182.58 3 +326252.91 6580.0 C57
2022-02-21 08:13:51 S 10 29 24.943 +31 27 35.64 V C57
2022-02-21 08:13:51 s 1 -120514.07 3 +325915.44 3790.0 C57
2022-02-21 08:23:51 S 10 29 24.142 +31 27 45.97 V C57
2022-02-21 08:23:51 s 1 -120845.17 1 +325576.90 8900.0 C57
2022-02-21 08:33:51 S 10 29 23.251 +31 27 56.74 V C57
2022-02-21 08:33:51 s 1 -121175.87 6 +325237.31 1900.0 C57
2022-02-21 08:43:51 S 10 29 22.397 +31 28 09.44 V C57
2022-02-21 08:43:51 s 1 -121506.18 6 +324896.66 2790.0 C57
2022-02-21 08:53:51 S 10 29 21.583 +31 28 20.57 V C57
2022-02-21 08:53:51 s 1 -121836.09 9 +324554.95 1550.0 C57
2022-02-21 09:03:06 C 10 28 36.44 +31 25 57.7 V T05
2022-02-21 09:05:44 C 10 28 36.22 +31 26 00.7 V T05
2022-02-21 09:13:44 C 10 28 35.58 +31 26 09.9 V T05
2022-02-21 09:13:51 S 10 29 19.800 +31 28 42.49 V C57
2022-02-21 09:13:51 s 1 -122494.73 0 +323868.35 2670.0 C57
2022-02-21 09:23:06 C 10 28 34.82 +31 26 20.5 V T05
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)