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 01:43:51 S 10 39 25.282 +28 49 01.02 V C57
2022-02-16 01:43:51 s 1 +154210.72 7 +290504.92 3340.0 C57
2022-02-16 01:53:51 S 10 39 24.694 +28 49 14.84 V C57
2022-02-16 01:53:51 s 1 +153930.88 9 +290945.14 0.0 C57
2022-02-16 02:03:51 S 10 39 23.954 +28 49 28.60 V C57
2022-02-16 02:03:51 s 1 +153650.45 9 +291384.24 4490.0 C57
2022-02-16 02:13:51 S 10 39 23.131 +28 49 41.59 V C57
2022-02-16 02:13:51 s 1 +153369.43 8 +291822.20 6800.0 C57
2022-02-16 02:23:51 S 10 39 22.558 +28 49 55.81 V C57
2022-02-16 02:23:51 s 1 +153087.82 8 +292259.03 6940.0 C57
2022-02-16 02:33:51 S 10 39 21.749 +28 50 08.81 V C57
2022-02-16 02:33:51 s 1 +152805.63 2 +292694.73 4930.0 C57
2022-02-16 02:43:51 S 10 39 21.058 +28 50 23.46 V C57
2022-02-16 02:43:51 s 1 +152522.85 2 +293129.30 780.0 C57
2022-02-16 02:53:51 S 10 39 20.342 +28 50 36.82 V C57
2022-02-16 02:53:51 s 1 +152239.49 0 +293562.74 4490.0 C57
2022-02-16 03:03:51 S 10 39 19.639 +28 50 49.45 V C57
2022-02-16 03:03:51 s 1 +151955.54 9 +293995.05 6070.0 C57
2022-02-16 03:13:51 S 10 39 18.955 +28 51 05.22 V C57
2022-02-16 03:13:51 s 1 +151671.03 1 +294426.24 5540.0 C57
2022-02-16 03:43:51 S 10 39 16.757 +28 51 45.72 V C57
2022-02-16 03:43:51 s 1 +150814.03 6 +295713.04 1350.0 C57
2022-02-16 03:53:51 S 10 39 15.989 +28 51 57.92 V C57
2022-02-16 03:53:51 s 1 +150527.23 2 +296139.72 2450.0 C57
2022-02-16 04:03:51 S 10 39 15.334 +28 52 12.90 V C57
2022-02-16 04:03:51 s 1 +150239.86 1 +296565.28 1480.0 C57
2022-02-16 04:13:51 S 10 39 14.597 +28 52 26.08 V C57
2022-02-16 04:13:51 s 1 +149951.92 7 +296989.71 8460.0 C57
2022-02-16 04:23:51 S 10 39 13.836 +28 52 40.01 V C57
2022-02-16 04:23:51 s 1 +149663.43 1 +297413.02 3380.0 C57
2022-02-16 04:33:51 S 10 39 13.164 +28 52 53.83 V C57
2022-02-16 04:33:51 s 1 +149374.37 5 +297835.21 6270.0 C57
2022-02-16 04:43:51 S 10 39 12.406 +28 53 06.90 V C57
2022-02-16 04:43:51 s 1 +149084.76 3 +298256.28 7120.0 C57
2022-02-16 04:53:51 S 10 39 11.729 +28 53 21.37 V C57
2022-02-16 04:53:51 s 1 +148794.59 5 +298676.22 5960.0 C57
2022-02-16 05:03:51 S 10 39 11.004 +28 53 34.51 V C57
2022-02-16 05:03:51 s 1 +148503.87 4 +299095.04 2780.0 C57
2022-02-16 05:13:51 S 10 39 10.301 +28 53 47.80 V C57
2022-02-16 05:13:51 s 1 +148212.60 3 +299512.75 7600.0 C57
2022-02-16 05:23:51 S 10 39 09.598 +28 54 02.48 V C57
2022-02-16 05:23:51 s 1 +147920.78 2 +299929.33 420.0 C57
2022-02-16 05:33:51 S 10 39 08.808 +28 54 15.66 V C57
2022-02-16 05:33:51 s 1 +147628.41 6 +300344.80 1260.0 C57
2022-02-16 05:43:51 S 10 39 08.150 +28 54 29.70 V C57
2022-02-16 05:43:51 s 1 +147335.50 5 +300759.14 120.0 C57
2022-02-16 05:53:51 S 10 39 07.426 +28 54 42.84 V C57
2022-02-16 05:53:51 s 1 +147042.05 2 +301172.37 7020.0 C57
2022-02-16 06:03:51 S 10 39 06.638 +28 54 56.52 V C57
2022-02-16 06:03:51 s 1 +146748.05 8 +301584.48 1960.0 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)