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
2022-02-23 02:33:51 S 10 25 46.183 +32 13 16.36 V C57
2022-02-23 02:33:51 s 1 -186359.00 5 +204559.74 3070.0 C57
2022-02-23 02:43:51 S 10 25 45.360 +32 13 25.39 V C57
2022-02-23 02:43:51 s 1 -186517.02 6 +203935.87 3200.0 C57
2022-02-23 02:53:51 S 10 25 44.462 +32 13 34.61 V C57
2022-02-23 02:53:51 s 1 -186673.95 8 +203310.81 8090.0 C57
2022-02-23 03:03:51 S 10 25 43.555 +32 13 46.42 V C57
2022-02-23 03:03:51 s 1 -186829.79 6 +202684.57 7720.0 C57
2022-02-23 03:13:51 S 10 25 42.722 +32 13 56.64 V C57
2022-02-23 03:13:51 s 1 -186984.53 5 +202057.14 2090.0 C57
2022-02-23 03:23:51 S 10 25 41.863 +32 14 06.79 V C57
2022-02-23 03:23:51 s 1 -187138.17 1 +201428.52 1150.0 C57
2022-02-23 03:33:51 S 10 25 40.985 +32 14 17.02 V C57
2022-02-23 03:33:51 s 1 -187290.69 8 +200798.71 4900.0 C57
2022-02-23 03:43:51 S 10 25 40.097 +32 14 26.45 V C57
2022-02-23 03:43:51 s 1 -187442.11 3 +200167.71 3310.0 C57
2022-02-23 03:53:51 S 10 25 39.298 +32 14 38.00 V C57
2022-02-23 03:53:51 s 1 -187592.41 1 +199535.53 6360.0 C57
2022-02-23 04:03:51 S 10 25 38.366 +32 14 48.70 V C57
2022-02-23 04:03:51 s 1 -187741.58 6 +198902.15 4040.0 C57
2022-02-23 04:13:51 S 10 25 37.423 +32 14 57.66 V C57
2022-02-23 04:13:51 s 1 -187889.63 5 +198267.59 6310.0 C57
2022-02-23 04:23:51 S 10 25 36.638 +32 15 06.91 V C57
2022-02-23 04:23:51 s 1 -188036.55 2 +197631.84 3170.0 C57
2022-02-23 04:33:51 S 10 25 35.777 +32 15 18.97 V C57
2022-02-23 04:33:51 s 1 -188182.33 3 +196994.90 4580.0 C57
2022-02-23 04:43:51 S 10 25 34.901 +32 15 29.05 V C57
2022-02-23 04:43:51 s 1 -188326.97 3 +196356.77 520.0 C57
2022-02-23 04:53:51 S 10 25 34.087 +32 15 39.53 V C57
2022-02-23 04:53:51 s 1 -188470.46 7 +195717.44 980.0 C57
2022-02-23 05:03:51 S 10 25 33.173 +32 15 49.54 V C57
2022-02-23 05:03:51 s 1 -188612.81 0 +195076.93 5940.0 C57
2022-02-23 05:23:51 S 10 25 31.267 +32 16 09.12 V C57
2022-02-23 05:23:51 s 1 -188894.02 5 +193792.33 9240.0 C57
2022-02-23 05:33:51 S 10 25 30.425 +32 16 18.23 V C57
2022-02-23 05:33:51 s 1 -189032.88 7 +193148.25 7540.0 C57
2022-02-23 05:43:51 S 10 25 29.599 +32 16 28.56 V C57
2022-02-23 05:43:51 s 1 -189170.57 8 +192502.97 250.0 C57
2022-02-23 05:53:51 S 10 25 28.795 +32 16 38.68 V C57
2022-02-23 05:53:51 s 1 -189307.09 4 +191856.51 7350.0 C57
2022-02-23 06:03:51 S 10 25 27.936 +32 16 50.41 V C57
2022-02-23 06:03:51 s 1 -189442.42 9 +191208.85 8800.0 C57
2022-02-23 06:13:51 S 10 25 27.005 +32 16 59.56 V C57
2022-02-23 06:13:51 s 1 -189576.57 9 +190560.00 4600.0 C57
2022-02-23 06:23:51 S 10 25 26.088 +32 17 07.91 V C57
2022-02-23 06:23:51 s 1 -189709.53 8 +189909.95 4710.0 C57
2022-02-23 06:33:51 S 10 25 25.171 +32 17 19.72 V C57
2022-02-23 06:33:51 s 1 -189841.30 2 +189258.72 9110.0 C57
2022-02-23 06:43:51 S 10 25 24.545 +32 17 28.57 V C57
2022-02-23 06:43:51 s 1 -189971.86 6 +188606.29 7790.0 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)