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
2022-02-20 12:43:51 S 10 31 03.545 +31 05 13.96 V C57
2022-02-20 12:43:51 s 1 -79478.922 0 +358331.64 4330.0 C57
2022-02-20 12:53:51 S 10 31 02.666 +31 05 25.01 V C57
2022-02-20 12:53:51 s 1 -79845.741 0 +358114.19 9800.0 C57
2022-02-20 13:03:51 S 10 31 01.826 +31 05 36.46 V C57
2022-02-20 13:03:51 s 1 -80212.333 0 +357895.72 3920.0 C57
2022-02-20 13:13:51 S 10 31 01.018 +31 05 48.66 V C57
2022-02-20 13:13:51 s 1 -80578.698 0 +357676.24 6670.0 C57
2022-02-20 13:23:51 S 10 31 00.158 +31 05 59.78 V C57
2022-02-20 13:23:51 s 1 -80944.833 0 +357455.74 8050.0 C57
2022-02-20 13:33:51 S 10 30 59.268 +31 06 10.94 V C57
2022-02-20 13:33:51 s 1 -81310.738 0 +357234.23 8050.0 C57
2022-02-20 13:43:51 S 10 30 58.514 +31 06 24.41 V C57
2022-02-20 13:43:51 s 1 -81676.411 0 +357011.70 6680.0 C57
2022-02-20 13:53:51 S 10 30 57.665 +31 06 34.81 V C57
2022-02-20 13:53:51 s 1 -82041.851 0 +356788.15 3910.0 C57
2022-02-20 14:03:51 S 10 30 56.798 +31 06 46.62 V C57
2022-02-20 14:03:51 s 1 -82407.057 0 +356563.58 9750.0 C57
2022-02-20 14:13:51 S 10 30 55.927 +31 06 58.18 V C57
2022-02-20 14:13:51 s 1 -82772.028 0 +356338.00 4190.0 C57
2022-02-20 14:23:51 S 10 30 55.128 +31 07 10.34 V C57
2022-02-20 14:23:51 s 1 -83136.761 0 +356111.40 7230.0 C57
2022-02-20 14:33:51 S 10 30 54.281 +31 07 21.68 V C57
2022-02-20 14:33:51 s 1 -83501.257 0 +355883.78 8850.0 C57
2022-02-20 14:43:51 S 10 30 53.417 +31 07 32.99 V C57
2022-02-20 14:43:51 s 1 -83865.513 0 +355655.14 9060.0 C57
2022-02-20 14:53:51 S 10 30 52.651 +31 07 45.34 V C57
2022-02-20 14:53:51 s 1 -84229.529 0 +355425.49 7850.0 C57
2022-02-20 15:03:51 S 10 30 51.804 +31 07 57.00 V C57
2022-02-20 15:03:51 s 1 -84593.303 0 +355194.81 5210.0 C57
2022-02-20 15:13:51 S 10 30 50.892 +31 08 07.84 V C57
2022-02-20 15:13:51 s 1 -84956.834 0 +354963.12 1140.0 C57
2022-02-20 15:23:51 S 10 30 50.136 +31 08 19.46 V C57
2022-02-20 15:23:51 s 1 -85320.120 0 +354730.41 5630.0 C57
2022-02-20 15:33:51 S 10 30 49.320 +31 08 31.34 V C57
2022-02-20 15:33:51 s 1 -85683.161 0 +354496.67 8670.0 C57
2022-02-20 15:43:51 S 10 30 48.413 +31 08 43.12 V C57
2022-02-20 15:43:51 s 1 -86045.955 0 +354261.92 270.0 C57
2022-02-20 15:53:51 S 10 30 47.566 +31 08 53.70 V C57
2022-02-20 15:53:51 s 1 -86408.501 0 +354026.15 400.0 C57
2022-02-20 16:03:51 S 10 30 46.812 +31 09 06.59 V C57
2022-02-20 16:03:51 s 1 -86770.797 0 +353789.35 9080.0 C57
2022-02-20 16:13:51 S 10 30 45.974 +31 09 17.35 V C57
2022-02-20 16:13:51 s 1 -87132.842 0 +353551.54 6290.0 C57
2022-02-20 16:23:51 S 10 30 45.046 +31 09 28.84 V C57
2022-02-20 16:23:51 s 1 -87494.636 0 +353312.70 2020.0 C57
2022-02-20 16:33:51 S 10 30 44.256 +31 09 41.08 V C57
2022-02-20 16:33:51 s 1 -87856.176 0 +353072.84 6280.0 C57
2022-02-20 16:43:51 S 10 30 43.440 +31 09 53.21 V C57
2022-02-20 16:43:51 s 1 -88217.461 0 +352831.96 9050.0 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)