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 00:53:51 S 10 32 02.460 +30 51 15.41 V C57
2022-02-20 00:53:51 s 1 -52929.801 0 +371190.93 3000.0 C57
2022-02-20 01:03:51 S 10 32 01.639 +30 51 27.43 V C57
2022-02-20 01:03:51 s 1 -53309.682 0 +371044.95 1470.0 C57
2022-02-20 01:13:51 S 10 32 00.797 +30 51 38.92 V C57
2022-02-20 01:13:51 s 1 -53689.420 0 +370897.97 8950.0 C57
2022-02-20 01:23:51 S 10 32 00.043 +30 51 51.84 V C57
2022-02-20 01:23:51 s 1 -54069.013 0 +370749.99 5440.0 C57
2022-02-20 01:33:51 S 10 31 59.100 +30 52 02.53 V C57
2022-02-20 01:33:51 s 1 -54448.459 0 +370601.01 920.0 C57
2022-02-20 01:43:51 S 10 31 58.298 +30 52 14.30 V C57
2022-02-20 01:43:51 s 1 -54827.758 0 +370451.04 5400.0 C57
2022-02-20 01:53:51 S 10 31 57.461 +30 52 27.84 V C57
2022-02-20 01:53:51 s 1 -55206.909 0 +370300.06 8860.0 C57
2022-02-20 02:03:51 S 10 31 56.657 +30 52 38.75 V C57
2022-02-20 02:03:51 s 1 -55585.910 0 +370148.08 1310.0 C57
2022-02-20 02:13:51 S 10 31 55.831 +30 52 49.66 V C57
2022-02-20 02:13:51 s 1 -55964.761 0 +369995.10 2750.0 C57
2022-02-20 02:23:51 S 10 31 55.049 +30 53 02.00 V C57
2022-02-20 02:23:51 s 1 -56343.460 0 +369841.12 3150.0 C57
2022-02-20 02:33:51 S 10 31 54.139 +30 53 15.32 V C57
2022-02-20 02:33:51 s 1 -56722.006 0 +369686.15 2530.0 C57
2022-02-20 02:43:51 S 10 31 53.306 +30 53 26.12 V C57
2022-02-20 02:43:51 s 1 -57100.398 0 +369530.16 870.0 C57
2022-02-20 02:53:51 S 10 31 52.536 +30 53 37.82 V C57
2022-02-20 02:53:51 s 1 -57478.635 0 +369373.18 8170.0 C57
2022-02-20 03:03:51 S 10 31 51.696 +30 53 50.86 V C57
2022-02-20 03:03:51 s 1 -57856.716 0 +369215.20 4420.0 C57
2022-02-20 03:13:51 S 10 31 50.837 +30 54 02.45 V C57
2022-02-20 03:13:51 s 1 -58234.639 0 +369056.22 9630.0 C57
2022-02-20 03:23:51 S 10 31 50.042 +30 54 13.10 V C57
2022-02-20 03:23:51 s 1 -58612.404 0 +368896.23 3780.0 C57
2022-02-20 03:33:51 S 10 31 49.265 +30 54 26.35 V C57
2022-02-20 03:33:51 s 1 -58990.009 0 +368735.24 6870.0 C57
2022-02-20 03:43:51 S 10 31 48.360 +30 54 38.20 V C57
2022-02-20 03:43:51 s 1 -59367.454 0 +368573.25 8890.0 C57
2022-02-20 03:53:51 S 10 31 47.566 +30 54 49.36 V C57
2022-02-20 03:53:51 s 1 -59744.737 0 +368410.26 9850.0 C57
2022-02-20 04:03:51 S 10 31 46.776 +30 55 01.63 V C57
2022-02-20 04:03:51 s 1 -60121.857 0 +368246.27 9730.0 C57
2022-02-20 04:13:51 S 10 31 45.946 +30 55 13.51 V C57
2022-02-20 04:13:51 s 1 -60498.813 0 +368081.27 8530.0 C57
2022-02-20 04:23:51 S 10 31 45.077 +30 55 25.00 V C57
2022-02-20 04:23:51 s 1 -60875.603 0 +367915.27 6240.0 C57
2022-02-20 04:33:51 S 10 31 44.251 +30 55 36.73 V C57
2022-02-20 04:33:51 s 1 -61252.228 0 +367748.26 2860.0 C57
2022-02-20 04:43:51 S 10 31 43.433 +30 55 50.12 V C57
2022-02-20 04:43:51 s 1 -61628.684 0 +367580.26 8390.0 C57
2022-02-20 04:53:51 S 10 31 42.562 +30 56 00.67 V C57
2022-02-20 04:53:51 s 1 -62004.973 0 +367411.25 2820.0 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)