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
2021-12-21 06:43:54 S 11 06 45.002 -03 30 49.82 V C57
2021-12-21 06:43:54 s 1 +109238.24 1 +338451.95 8670.0 C57
2021-12-21 06:53:54 S 11 06 45.454 -03 30 41.33 V C57
2021-12-21 06:53:54 s 1 +108932.88 7 +338768.23 3910.0 C57
2021-12-21 07:03:54 S 11 06 46.030 -03 30 33.84 V C57
2021-12-21 07:03:54 s 1 +108627.18 2 +339083.45 7940.0 C57
2021-12-21 07:13:54 S 11 06 46.402 -03 30 23.98 V C57
2021-12-21 07:13:54 s 1 +108321.12 6 +339397.61 770.0 C57
2021-12-21 07:23:54 S 11 06 46.906 -03 30 17.86 V C57
2021-12-21 07:23:54 s 1 +108014.72 2 +339710.70 2390.0 C57
2021-12-21 07:33:54 S 11 06 47.470 -03 30 09.61 V C57
2021-12-21 07:33:54 s 1 +107707.97 1 +340022.73 2820.0 C57
2021-12-21 07:53:54 S 11 06 48.343 -03 29 53.66 V C57
2021-12-21 07:53:54 s 1 +107093.43 4 +340643.60 120.0 C57
2021-12-21 08:03:54 S 11 06 48.878 -03 29 45.82 V C57
2021-12-21 08:03:54 s 1 +106785.65 2 +340952.45 7000.0 C57
2021-12-21 08:13:54 S 11 06 49.334 -03 29 37.21 V C57
2021-12-21 08:13:54 s 1 +106477.52 8 +341260.23 2710.0 C57
2021-12-21 08:23:54 S 11 06 49.834 -03 29 30.08 V C57
2021-12-21 08:23:54 s 1 +106169.06 4 +341566.95 7250.0 C57
2021-12-21 08:33:54 S 11 06 50.338 -03 29 22.99 V C57
2021-12-21 08:33:54 s 1 +105860.26 3 +341872.62 630.0 C57
2021-12-21 08:43:54 S 11 06 50.818 -03 29 14.86 V C57
2021-12-21 08:43:54 s 1 +105551.12 5 +342177.23 2870.0 C57
2021-12-21 09:33:54 S 11 06 53.323 -03 28 34.57 V C57
2021-12-21 09:33:54 s 1 +104000.43 9 +343684.41 6950.0 C57
2021-12-21 09:43:54 S 11 06 53.647 -03 28 26.44 V C57
2021-12-21 09:43:54 s 1 +103689.31 2 +343982.68 2400.0 C57
2021-12-21 10:03:54 S 11 06 54.485 -03 28 10.96 V C57
2021-12-21 10:03:54 s 1 +103066.08 2 +344576.06 9950.0 C57
2021-12-21 10:13:54 S 11 06 55.354 -03 28 02.35 V C57
2021-12-21 10:13:54 s 1 +102753.98 1 +344871.18 2080.0 C57
2021-12-21 10:43:54 S 11 06 56.453 -03 27 39.38 V C57
2021-12-21 10:43:54 s 1 +101815.75 2 +345750.21 1930.0 C57
2021-12-21 10:53:54 S 11 06 56.890 -03 27 34.02 V C57
2021-12-21 10:53:54 s 1 +101502.37 2 +346041.12 9720.0 C57
2021-12-21 11:03:54 S 11 06 57.571 -03 27 25.70 V C57
2021-12-21 11:03:54 s 1 +101188.67 6 +346330.98 6430.0 C57
2021-12-21 11:13:54 S 11 06 57.958 -03 27 13.68 V C57
2021-12-21 11:13:54 s 1 +100874.66 4 +346619.80 2090.0 C57
2021-12-21 11:23:54 S 11 06 58.517 -03 27 09.86 V C57
2021-12-21 11:23:54 s 1 +100560.33 9 +346907.56 6680.0 C57
2021-12-21 11:33:54 S 11 06 58.903 -03 26 59.96 V C57
2021-12-21 11:33:54 s 1 +100245.70 2 +347194.28 230.0 C57
2021-12-21 11:43:54 S 11 06 59.455 -03 26 53.59 V C57
2021-12-21 11:43:54 s 1 +99930.755 0 +347479.96 2720.0 C57
2021-12-21 11:53:54 S 11 06 59.882 -03 26 44.81 V C57
2021-12-21 11:53:54 s 1 +99615.498 0 +347764.58 4180.0 C57
2021-12-21 12:03:54 S 11 07 00.319 -03 26 37.00 V C57
2021-12-21 12:03:54 s 1 +99299.933 0 +348048.17 4600.0 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)