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
2022-02-16 10:43:51 S 10 38 46.342 +29 01 17.04 V C57
2022-02-16 10:43:51 s 1 +138305.31 3 +312672.47 1400.0 C57
2022-02-16 10:53:51 S 10 38 45.660 +29 01 31.98 V C57
2022-02-16 10:53:51 s 1 +137996.54 4 +313052.44 3380.0 C57
2022-02-16 11:03:51 S 10 38 44.921 +29 01 44.36 V C57
2022-02-16 11:03:51 s 1 +137687.29 5 +313431.31 3660.0 C57
2022-02-16 11:13:51 S 10 38 44.213 +29 01 57.65 V C57
2022-02-16 11:13:51 s 1 +137377.56 8 +313809.08 2240.0 C57
2022-02-16 11:23:51 S 10 38 43.517 +29 02 12.16 V C57
2022-02-16 11:23:51 s 1 +137067.36 5 +314185.76 9140.0 C57
2022-02-16 11:33:51 S 10 38 42.694 +29 02 25.33 V C57
2022-02-16 11:33:51 s 1 +136756.68 8 +314561.34 4370.0 C57
2022-02-16 11:43:51 S 10 38 42.077 +29 02 39.37 V C57
2022-02-16 11:43:51 s 1 +136445.53 8 +314935.82 7930.0 C57
2022-02-16 11:53:51 S 10 38 41.290 +29 02 52.40 V C57
2022-02-16 11:53:51 s 1 +136133.91 8 +315309.20 9830.0 C57
2022-02-16 12:03:51 S 10 38 40.519 +29 03 06.01 V C57
2022-02-16 12:03:51 s 1 +135821.82 9 +315681.49 70.0 C57
2022-02-16 12:13:51 S 10 38 39.816 +29 03 19.94 V C57
2022-02-16 12:13:51 s 1 +135509.27 3 +316052.68 8680.0 C57
2022-02-16 12:23:51 S 10 38 39.101 +29 03 33.05 V C57
2022-02-16 12:23:51 s 1 +135196.25 3 +316422.77 5650.0 C57
2022-02-16 12:33:51 S 10 38 38.362 +29 03 47.02 V C57
2022-02-16 12:33:51 s 1 +134882.76 9 +316791.77 990.0 C57
2022-02-16 12:43:51 S 10 38 37.634 +29 04 01.13 V C57
2022-02-16 12:43:51 s 1 +134568.82 4 +317159.68 4710.0 C57
2022-02-16 12:53:51 S 10 38 36.907 +29 04 12.83 V C57
2022-02-16 12:53:51 s 1 +134254.42 0 +317526.50 6810.0 C57
2022-02-16 13:03:51 S 10 38 36.214 +29 04 27.77 V C57
2022-02-16 13:03:51 s 1 +133939.55 9 +317892.22 7320.0 C57
2022-02-16 13:13:51 S 10 38 35.414 +29 04 40.69 V C57
2022-02-16 13:13:51 s 1 +133624.24 1 +318256.85 6230.0 C57
2022-02-16 13:23:51 S 10 38 34.745 +29 04 54.19 V C57
2022-02-16 13:23:51 s 1 +133308.47 0 +318620.38 3540.0 C57
2022-02-16 13:33:51 S 10 38 34.013 +29 05 08.30 V C57
2022-02-16 13:33:51 s 1 +132992.24 7 +318982.83 9280.0 C57
2022-02-16 13:43:51 S 10 38 33.178 +29 05 21.12 V C57
2022-02-16 13:43:51 s 1 +132675.57 3 +319344.18 3450.0 C57
2022-02-16 13:53:51 S 10 38 32.510 +29 05 35.23 V C57
2022-02-16 13:53:51 s 1 +132358.45 2 +319704.45 6050.0 C57
2022-02-16 14:03:51 S 10 38 31.788 +29 05 48.23 V C57
2022-02-16 14:03:51 s 1 +132040.88 3 +320063.62 7090.0 C57
2022-02-16 14:13:51 S 10 38 31.027 +29 06 01.40 V C57
2022-02-16 14:13:51 s 1 +131722.87 0 +320421.71 6580.0 C57
2022-02-16 14:23:51 S 10 38 30.314 +29 06 16.27 V C57
2022-02-16 14:23:51 s 1 +131404.41 3 +320778.71 4530.0 C57
2022-02-16 14:33:51 S 10 38 29.561 +29 06 28.33 V C57
2022-02-16 14:33:51 s 1 +131085.51 6 +321134.62 950.0 C57
2022-02-16 14:43:51 S 10 38 28.867 +29 06 42.88 V C57
2022-02-16 14:43:51 s 1 +130766.17 9 +321489.44 5830.0 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)