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
2022-02-22 01:53:51 S 10 27 54.355 +31 47 08.59 V C57
2022-02-22 01:53:51 s 1 -153074.62 8 +284050.93 5980.0 C57
2022-02-22 02:03:51 S 10 27 53.522 +31 47 19.28 V C57
2022-02-22 02:03:51 s 1 -153353.71 2 +283597.53 1020.0 C57
2022-02-22 02:13:51 S 10 27 52.680 +31 47 29.98 V C57
2022-02-22 02:13:51 s 1 -153632.19 3 +283143.02 3020.0 C57
2022-02-22 02:23:51 S 10 27 51.790 +31 47 40.74 V C57
2022-02-22 02:23:51 s 1 -153910.06 9 +282687.40 1950.0 C57
2022-02-22 02:33:51 S 10 27 50.969 +31 47 52.19 V C57
2022-02-22 02:33:51 s 1 -154187.33 8 +282230.66 7800.0 C57
2022-02-22 02:43:51 S 10 27 50.117 +31 48 01.76 V C57
2022-02-22 02:43:51 s 1 -154463.99 7 +281772.81 570.0 C57
2022-02-22 02:53:51 S 10 27 49.210 +31 48 13.00 V C57
2022-02-22 02:53:51 s 1 -154740.04 4 +281313.85 250.0 C57
2022-02-22 03:03:51 S 10 27 48.312 +31 48 24.23 V C57
2022-02-22 03:03:51 s 1 -155015.47 6 +280853.78 6820.0 C57
2022-02-22 03:13:51 S 10 27 47.566 +31 48 35.21 V C57
2022-02-22 03:13:51 s 1 -155290.29 2 +280392.58 280.0 C57
2022-02-22 03:23:51 S 10 27 46.574 +31 48 45.79 V C57
2022-02-22 03:23:51 s 1 -155564.48 8 +279930.28 600.0 C57
2022-02-22 03:33:51 S 10 27 45.734 +31 48 56.45 V C57
2022-02-22 03:33:51 s 1 -155838.06 2 +279466.85 7790.0 C57
2022-02-22 03:43:51 S 10 27 44.950 +31 49 07.50 V C57
2022-02-22 03:43:51 s 1 -156111.01 2 +279002.31 1820.0 C57
2022-02-22 03:53:51 S 10 27 44.081 +31 49 19.31 V C57
2022-02-22 03:53:51 s 1 -156383.33 5 +278536.65 2700.0 C57
2022-02-22 04:03:51 S 10 27 43.188 +31 49 29.93 V C57
2022-02-22 04:03:51 s 1 -156655.02 9 +278069.88 400.0 C57
2022-02-22 04:13:51 S 10 27 42.360 +31 49 39.58 V C57
2022-02-22 04:13:51 s 1 -156926.09 2 +277601.98 4920.0 C57
2022-02-22 04:23:51 S 10 27 41.438 +31 49 50.88 V C57
2022-02-22 04:23:51 s 1 -157196.52 0 +277132.97 6250.0 C57
2022-02-22 04:33:51 S 10 27 40.603 +31 50 02.51 V C57
2022-02-22 04:33:51 s 1 -157466.31 2 +276662.83 4370.0 C57
2022-02-22 04:53:51 S 10 27 38.854 +31 50 22.67 V C57
2022-02-22 04:53:51 s 1 -158003.97 5 +275719.21 950.0 C57
2022-02-22 05:03:51 S 10 27 38.023 +31 50 34.15 V C57
2022-02-22 05:03:51 s 1 -158271.84 1 +275245.71 9390.0 C57
2022-02-22 05:13:51 S 10 27 37.198 +31 50 44.84 V C57
2022-02-22 05:13:51 s 1 -158539.06 1 +274771.09 4570.0 C57
2022-02-22 05:23:51 S 10 27 36.329 +31 50 55.72 V C57
2022-02-22 05:23:51 s 1 -158805.63 2 +274295.35 6490.0 C57
2022-02-22 05:33:51 S 10 27 35.453 +31 51 06.05 V C57
2022-02-22 05:33:51 s 1 -159071.55 1 +273818.49 5140.0 C57
2022-02-22 05:43:51 S 10 27 34.546 +31 51 17.42 V C57
2022-02-22 05:43:51 s 1 -159336.81 5 +273340.50 500.0 C57
2022-02-22 05:53:51 S 10 27 33.746 +31 51 27.43 V C57
2022-02-22 05:53:51 s 1 -159601.42 3 +272861.39 2570.0 C57
2022-02-22 06:03:51 S 10 27 32.856 +31 51 38.66 V C57
2022-02-22 06:03:51 s 1 -159865.37 1 +272381.16 1330.0 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)