2340 Hathor (1976 UA)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4499362759 ± 2.00e+00
Semi-major axis (a)0.8438607999 AU ± 3.00e+00
Inclination (i)5.86058780° ± 4.00e+00
Long. of Asc. Node (Ω)211.28370419° ± 5.00e+00
Arg. of Perihelion (ω)40.11847477° ± 6.00e+00
Mean Anomaly (M)201.97974796° ± 9.88e-06
Mean Motion (n)1.2714698219°/day ± 6.78e+00
Perihelion dist (q)0.46417721 AU ± 2.36e+00
Aphelion dist (Q)1.22354439 AU ± 4.67e+00
Orbital Period0.77518653 yr ± 4.13e+00
NGA Modelr2
A2-3.12283792e-06 AU/d²
Physical Parameters
H (abs. magnitude)20.41
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-26
RMS Residual1.084″
Uncertainty0
Orbit TypeAten
MOID0.006333 AU
Observations Used1452
Oppositions15
Arc Total1976-2026
First Observation Used1976-10-22
Last Observation Used2026-01-18
Observations (2217)
Date Type RA Dec Mag Band Observatory
2021-11-01 03:33:57 s 1 -27848.951 0 +368912.42 4570.0 C57
2021-11-01 11:46:51 C 05 09 20.56 +13 49 53.3 V T05
2021-11-01 11:49:30 C 05 09 19.61 +13 49 48.8 V T05
2021-11-01 11:53:28 C 05 09 18.22 +13 49 42.5 V T05
2021-11-01 12:06:25 C 05 09 13.69 +13 49 20.8 V T05
2021-11-01 14:03:57 S 05 07 16.351 +13 54 53.82 V C57
2021-11-01 14:03:57 s 1 -50326.582 0 +360378.43 2140.0 C57
2021-11-01 14:13:57 S 05 07 12.792 +13 54 33.55 V C57
2021-11-01 14:13:57 s 1 -50678.936 0 +360208.84 3380.0 C57
2021-11-01 14:23:57 S 05 07 09.370 +13 54 22.00 V C57
2021-11-01 14:23:57 s 1 -51031.126 0 +360038.19 3950.0 C57
2021-11-01 14:33:57 S 05 07 05.280 +13 53 48.52 V C57
2021-11-01 14:33:57 s 1 -51383.151 0 +359866.46 3840.0 C57
2021-11-01 14:53:57 S 05 06 58.440 +13 53 14.89 V C57
2021-11-01 14:53:57 s 1 -52086.701 0 +359519.76 1560.0 C57
2021-11-01 15:03:57 S 05 06 55.003 +13 52 55.34 V C57
2021-11-01 15:03:57 s 1 -52438.223 0 +359344.80 9390.0 C57
2021-11-01 15:33:57 S 05 06 44.071 +13 52 09.05 V C57
2021-11-01 15:33:57 s 1 -53491.767 0 +358813.45 8690.0 C57
2021-11-01 15:43:57 S 05 06 39.989 +13 51 46.84 V C57
2021-11-01 15:43:57 s 1 -53842.603 0 +358634.18 3710.0 C57
2021-11-01 15:53:57 S 05 06 36.588 +13 51 27.29 V C57
2021-11-01 15:53:57 s 1 -54193.264 0 +358453.83 8020.0 C57
2021-11-01 16:03:57 S 05 06 33.367 +13 51 14.47 V C57
2021-11-01 16:03:57 s 1 -54543.750 0 +358272.40 1620.0 C57
2021-11-01 17:13:57 S 05 06 08.311 +13 49 02.78 V C57
2021-11-01 17:13:57 s 1 -56992.122 0 +356972.10 6340.0 C57
2021-11-01 17:23:57 S 05 06 04.862 +13 48 39.49 V C57
2021-11-01 17:23:57 s 1 -57341.156 0 +356782.01 4050.0 C57
2021-11-01 17:33:57 S 05 06 00.614 +13 48 19.80 V C57
2021-11-01 17:33:57 s 1 -57690.004 0 +356590.84 990.0 C57
2021-11-01 17:43:57 S 05 05 56.647 +13 47 58.16 V C57
2021-11-01 17:43:57 s 1 -58038.664 0 +356398.58 7180.0 C57
2021-11-01 17:53:57 S 05 05 53.206 +13 47 47.33 V C57
2021-11-01 17:53:57 s 1 -58387.134 0 +356205.24 2600.0 C57
2021-11-01 18:03:57 S 05 05 50.434 +13 47 31.31 V C57
2021-11-01 18:03:57 s 1 -58735.414 0 +356010.81 7250.0 C57
2021-11-01 18:23:57 S 05 05 42.588 +13 46 45.59 V C57
2021-11-01 18:23:57 s 1 -59431.396 0 +355618.70 4230.0 C57
2021-11-01 18:43:57 S 05 05 34.942 +13 46 14.38 V C57
2021-11-01 18:43:57 s 1 -60126.601 0 +355222.23 8070.0 C57
2021-11-01 19:03:57 S 05 05 28.298 +13 45 40.25 V C57
2021-11-01 19:03:57 s 1 -60821.019 0 +354821.41 8740.0 C57
2021-11-01 19:23:57 S 05 05 20.580 +13 44 57.52 V C57
2021-11-01 19:23:57 s 1 -61514.639 0 +354416.23 6210.0 C57
2021-11-01 19:53:57 S 05 05 10.447 +13 44 04.42 V C57
2021-11-01 19:53:57 s 1 -62553.551 0 +353800.28 6320.0 C57
2021-11-01 20:03:57 S 05 05 06.566 +13 43 41.88 V C57
2021-11-01 20:03:57 s 1 -62899.445 0 +353592.78 1380.0 C57
2021-11-01 20:13:57 S 05 05 03.737 +13 43 18.26 V C57
Radar Observations (7)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2014-10-20 07:40:00 166355.453 2 Hz 8560 -14 -14
2014-10-20 08:35:00 41303.3259 1 Hz 2380 -1 -1
2014-10-20 08:40:00 49250902.97 3 us 8560 -14 -14
2014-10-20 10:20:00 49138106.93 0.3 us 2380 -1 -1
2014-10-21 07:36:00 17315.52 0.5 Hz 2380 -1 -1
2014-10-21 08:00:00 48261871.2 0.2 us 2380 -1 -1
2014-10-22 09:00:00 48227416.89 2 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)