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
2021-11-03 17:53:57 S 04 48 58.891 +12 17 31.16 V C57
2021-11-03 17:53:57 s 1 -144554.30 6 +252207.64 9500.0 C57
2021-11-03 18:37:02 C 04 50 49.694 +12 18 32.36 V P07
2021-11-03 18:53:57 S 04 48 39.802 +12 15 44.96 V C57
2021-11-03 18:53:57 s 1 -145867.20 3 +248922.64 9360.0 C57
2021-11-03 19:03:57 S 04 48 35.477 +12 15 25.81 V C57
2021-11-03 19:03:57 s 1 -146083.10 9 +248370.21 140.0 C57
2021-11-03 19:13:57 S 04 48 32.362 +12 15 07.38 V C57
2021-11-03 19:13:57 s 1 -146298.17 3 +247816.36 7760.0 C57
2021-11-03 19:23:57 S 04 48 28.788 +12 14 47.44 V C57
2021-11-03 19:23:57 s 1 -146512.38 9 +247261.09 2230.0 C57
2021-11-03 19:29:08 C 04 50 31.358 +12 17 03.16 V P07
2021-11-03 19:33:57 S 04 48 24.641 +12 14 27.06 V C57
2021-11-03 19:33:57 s 1 -146725.75 5 +246704.41 3520.0 C57
2021-11-03 19:43:57 S 04 48 21.485 +12 14 05.68 V C57
2021-11-03 19:43:57 s 1 -146938.26 6 +246146.30 1630.0 C57
2021-11-03 19:53:57 S 04 48 18.586 +12 13 52.18 V C57
2021-11-03 19:53:57 s 1 -147149.91 7 +245586.77 6520.0 C57
2021-11-03 20:19:19 C 04 50 13.788 +12 15 37.08 V P07
2021-11-03 20:22:06 C 04 50 12.780 +12 15 32.04 V P07
2021-11-03 20:33:57 S 04 48 05.316 +12 12 33.59 V C57
2021-11-03 20:33:57 s 1 -147987.84 3 +243334.39 3710.0 C57
2021-11-03 20:43:57 S 04 48 01.680 +12 12 15.16 V C57
2021-11-03 20:43:57 s 1 -148195.13 3 +242767.71 2330.0 C57
2021-11-03 21:03:57 S 04 47 54.694 +12 11 35.45 V C57
2021-11-03 21:03:57 s 1 -148607.05 2 +241630.07 9660.0 C57
2021-11-03 21:13:57 S 04 47 51.221 +12 11 19.32 V C57
2021-11-03 21:13:57 s 1 -148811.67 3 +241059.09 8320.0 C57
2021-11-03 21:23:57 S 04 47 48.017 +12 10 58.19 V C57
2021-11-03 21:23:57 s 1 -149015.39 4 +240486.67 3640.0 C57
2021-11-03 21:33:57 S 04 47 44.866 +12 10 41.66 V C57
2021-11-03 21:33:57 s 1 -149218.21 3 +239912.80 5590.0 C57
2021-11-03 21:43:57 S 04 47 41.016 +12 10 26.40 V C57
2021-11-03 21:43:57 s 1 -149420.12 3 +239337.50 4160.0 C57
2021-11-03 22:03:57 S 04 47 34.313 +12 09 44.17 V C57
2021-11-03 22:03:57 s 1 -149821.20 2 +238182.55 1070.0 C57
2021-11-03 22:13:57 S 04 47 31.157 +12 09 24.84 V C57
2021-11-03 22:13:57 s 1 -150020.36 1 +237602.90 9380.0 C57
2021-11-03 22:33:57 S 04 47 24.257 +12 08 50.17 V C57
2021-11-03 22:33:57 s 1 -150415.89 5 +236439.24 5630.0 C57
2021-11-03 23:03:57 S 04 47 13.870 +12 07 46.34 V C57
2021-11-03 23:03:57 s 1 -151002.16 6 +234682.84 8830.0 C57
2021-11-03 23:23:57 S 04 47 07.786 +12 07 16.90 V C57
2021-11-03 23:23:57 s 1 -151388.27 1 +233504.59 9960.0 C57
2021-11-03 23:33:57 S 04 47 03.758 +12 06 53.21 V C57
2021-11-03 23:33:57 s 1 -151579.88 6 +232913.28 170.0 C57
2021-11-03 23:43:57 S 04 47 00.744 +12 06 33.05 V C57
2021-11-03 23:43:57 s 1 -151770.53 6 +232320.49 6800.0 C57
2021-11-03 23:53:57 S 04 46 57.034 +12 06 18.36 V C57
2021-11-03 23:53:57 s 1 -151960.21 6 +231726.23 9810.0 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)