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 01:13:51 S 10 30 00.478 +31 19 38.93 V C57
2022-02-21 01:13:51 s 1 -106274.03 7 +339184.25 960.0 C57
2022-02-21 01:23:51 S 10 29 59.736 +31 19 50.30 V C57
2022-02-21 01:23:51 s 1 -106620.21 9 +338889.76 8160.0 C57
2022-02-21 01:33:51 S 10 29 58.910 +31 20 02.94 V C57
2022-02-21 01:33:51 s 1 -106966.07 3 +338594.24 3550.0 C57
2022-02-21 01:43:51 S 10 29 57.979 +31 20 13.60 V C57
2022-02-21 01:43:51 s 1 -107311.59 8 +338297.67 7120.0 C57
2022-02-21 01:53:51 S 10 29 57.211 +31 20 23.39 V C57
2022-02-21 01:53:51 s 1 -107656.79 3 +338000.06 8860.0 C57
2022-02-21 02:03:51 S 10 29 56.345 +31 20 36.28 V C57
2022-02-21 02:03:51 s 1 -108001.65 5 +337701.42 8770.0 C57
2022-02-21 02:13:51 S 10 29 55.464 +31 20 48.30 V C57
2022-02-21 02:13:51 s 1 -108346.18 3 +337401.72 6830.0 C57
2022-02-21 02:23:51 S 10 29 54.646 +31 20 57.98 V C57
2022-02-21 02:23:51 s 1 -108690.37 6 +337100.99 3060.0 C57
2022-02-21 02:33:51 S 10 29 53.765 +31 21 09.07 V C57
2022-02-21 02:33:51 s 1 -109034.23 2 +336799.21 7420.0 C57
2022-02-21 02:43:51 S 10 29 52.934 +31 21 22.21 V C57
2022-02-21 02:43:51 s 1 -109377.75 1 +336496.40 9930.0 C57
2022-02-21 02:53:51 S 10 29 52.078 +31 21 32.76 V C57
2022-02-21 02:53:51 s 1 -109720.92 9 +336192.53 570.0 C57
2022-02-21 03:03:51 S 10 29 51.233 +31 21 43.67 V C57
2022-02-21 03:03:51 s 1 -110063.76 6 +335887.63 9340.0 C57
2022-02-21 03:13:51 S 10 29 50.374 +31 21 56.27 V C57
2022-02-21 03:13:51 s 1 -110406.26 1 +335581.67 6220.0 C57
2022-02-21 03:23:51 S 10 29 49.538 +31 22 06.92 V C57
2022-02-21 03:23:51 s 1 -110748.41 1 +335274.68 1220.0 C57
2022-02-21 03:33:51 S 10 29 48.732 +31 22 17.90 V C57
2022-02-21 03:33:51 s 1 -111090.21 6 +334966.64 4320.0 C57
2022-02-21 03:43:51 S 10 29 47.866 +31 22 29.03 V C57
2022-02-21 03:43:51 s 1 -111431.67 3 +334657.55 5530.0 C57
2022-02-21 03:53:51 S 10 29 47.081 +31 22 41.74 V C57
2022-02-21 03:53:51 s 1 -111772.78 1 +334347.42 4820.0 C57
2022-02-21 04:03:51 S 10 29 46.190 +31 22 52.61 V C57
2022-02-21 04:03:51 s 1 -112113.54 0 +334036.24 2200.0 C57
2022-02-21 04:13:51 S 10 29 45.365 +31 23 03.70 V C57
2022-02-21 04:13:51 s 1 -112453.94 6 +333724.01 7660.0 C57
2022-02-21 04:23:51 S 10 29 44.422 +31 23 15.61 V C57
2022-02-21 04:23:51 s 1 -112793.99 9 +333410.74 1190.0 C57
2022-02-21 04:33:51 S 10 29 43.654 +31 23 27.64 V C57
2022-02-21 04:33:51 s 1 -113133.69 7 +333096.41 2780.0 C57
2022-02-21 04:43:51 S 10 29 42.792 +31 23 37.86 V C57
2022-02-21 04:43:51 s 1 -113473.03 8 +332781.05 2430.0 C57
2022-02-21 04:53:51 S 10 29 41.873 +31 23 49.09 V C57
2022-02-21 04:53:51 s 1 -113812.02 2 +332464.63 130.0 C57
2022-02-21 05:03:51 S 10 29 41.095 +31 24 00.72 V C57
2022-02-21 05:03:51 s 1 -114150.64 5 +332147.16 5880.0 C57
2022-02-21 05:13:51 S 10 29 40.284 +31 24 11.88 V C57
2022-02-21 05:13:51 s 1 -114488.90 8 +331828.64 9660.0 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)