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
2022-02-10 11:33:52 s 1 -167532.94 4 -15367.652 3670.0 C57
2022-02-10 11:43:52 S 10 48 20.472 +25 32 33.94 V C57
2022-02-10 11:43:52 s 1 -167063.02 6 -16220.317 3970.0 C57
2022-02-10 11:53:52 S 10 48 19.654 +25 32 48.88 V C57
2022-02-10 11:53:52 s 1 -166589.19 2 -17072.600 7200.0 C57
2022-02-10 12:03:52 S 10 48 18.758 +25 33 04.64 V C57
2022-02-10 12:03:52 s 1 -166111.42 5 -17924.480 3280.0 C57
2022-02-10 12:13:52 S 10 48 17.935 +25 33 19.55 V C57
2022-02-10 12:13:52 s 1 -165629.70 7 -18775.933 2150.0 C57
2022-02-10 12:23:52 S 10 48 17.038 +25 33 34.63 V C57
2022-02-10 12:23:52 s 1 -165144.01 9 -19626.935 3740.0 C57
2022-02-10 12:33:52 S 10 48 16.270 +25 33 50.72 V C57
2022-02-10 12:33:52 s 1 -164654.34 4 -20477.463 7970.0 C57
2022-02-10 12:43:52 S 10 48 15.427 +25 34 04.91 V C57
2022-02-10 12:43:52 s 1 -164160.66 4 -21327.493 4790.0 C57
2022-02-10 12:53:52 S 10 48 14.527 +25 34 20.03 V C57
2022-02-10 12:53:52 s 1 -163662.96 1 -22176.999 4110.0 C57
2022-02-10 13:03:52 S 10 48 13.711 +25 34 36.48 V C57
2022-02-10 13:03:52 s 1 -163161.21 7 -23025.957 5870.0 C57
2022-02-10 13:13:52 S 10 48 12.794 +25 34 51.28 V C57
2022-02-10 13:13:52 s 1 -162655.41 3 -23874.341 0.0 C57
2022-02-10 13:23:52 S 10 48 11.947 +25 35 07.98 V C57
2022-02-10 13:23:52 s 1 -162145.53 3 -24722.127 6430.0 C57
2022-02-10 13:33:52 S 10 48 11.088 +25 35 22.31 V C57
2022-02-10 13:33:52 s 1 -161631.55 7 -25569.287 5090.0 C57
2022-02-10 13:43:52 S 10 48 10.308 +25 35 37.10 V C57
2022-02-10 13:43:52 s 1 -161113.46 9 -26415.797 5910.0 C57
2022-02-10 13:53:52 S 10 48 09.480 +25 35 52.66 V C57
2022-02-10 13:53:52 s 1 -160591.24 9 -27261.628 8830.0 C57
2022-02-10 14:03:52 S 10 48 08.606 +25 36 07.85 V C57
2022-02-10 14:03:52 s 1 -160064.88 1 -28106.755 3770.0 C57
2022-02-10 14:13:52 S 10 48 07.711 +25 36 23.36 V C57
2022-02-10 14:13:52 s 1 -159534.34 5 -28951.149 660.0 C57
2022-02-10 14:23:52 S 10 48 06.857 +25 36 38.77 V C57
2022-02-10 14:23:52 s 1 -158999.62 5 -29794.784 9440.0 C57
2022-02-10 14:33:52 S 10 48 06.019 +25 36 54.58 V C57
2022-02-10 14:33:52 s 1 -158460.70 2 -30637.630 40.0 C57
2022-02-10 14:43:52 S 10 48 05.218 +25 37 08.87 V C57
2022-02-10 14:43:52 s 1 -157917.55 8 -31479.660 2390.0 C57
2022-02-10 14:53:52 S 10 48 04.368 +25 37 24.56 V C57
2022-02-10 14:53:52 s 1 -157370.17 5 -32320.844 6420.0 C57
2022-02-10 15:03:52 S 10 48 03.518 +25 37 39.40 V C57
2022-02-10 15:03:52 s 1 -156818.53 7 -33161.154 2070.0 C57
2022-02-10 15:13:52 S 10 48 02.640 +25 37 55.34 V C57
2022-02-10 15:13:52 s 1 -156262.62 4 -34000.559 9270.0 C57
2022-02-10 15:23:52 S 10 48 01.802 +25 38 10.61 V C57
2022-02-10 15:23:52 s 1 -155702.41 9 -34839.030 7950.0 C57
2022-02-10 15:33:52 S 10 48 00.924 +25 38 25.48 V C57
2022-02-10 15:33:52 s 1 -155137.90 5 -35676.537 8040.0 C57
2022-02-10 15:43:52 S 10 48 00.074 +25 38 41.21 V 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)