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
2021-10-31 08:03:57 S 05 18 05.916 +14 48 36.72 V C57
2021-10-31 08:03:57 s 1 +14669.712 0 +373731.63 4300.0 C57
2021-10-31 08:13:57 S 05 18 02.772 +14 48 19.30 V C57
2021-10-31 08:13:57 s 1 +14305.642 0 +373750.56 3340.0 C57
2021-10-31 08:33:57 S 05 17 55.579 +14 47 39.91 V C57
2021-10-31 08:33:57 s 1 +13577.421 0 +373785.32 1430.0 C57
2021-10-31 08:43:57 S 05 17 51.326 +14 47 25.44 V C57
2021-10-31 08:43:57 s 1 +13213.271 0 +373801.15 480.0 C57
2021-10-31 09:03:57 S 05 17 44.633 +14 46 56.10 V C57
2021-10-31 09:03:57 s 1 +12484.900 0 +373829.70 8560.0 C57
2021-10-31 09:23:57 S 05 17 36.521 +14 46 14.66 V C57
2021-10-31 09:23:57 s 1 +11756.439 0 +373854.13 6590.0 C57
2021-10-31 09:33:57 S 05 17 34.034 +14 45 57.82 V C57
2021-10-31 09:33:57 s 1 +11392.177 0 +373864.79 5580.0 C57
2021-10-31 09:43:57 S 05 17 29.616 +14 45 33.59 V C57
2021-10-31 09:43:57 s 1 +11027.896 0 +373874.42 4550.0 C57
2021-10-31 09:53:57 S 05 17 26.174 +14 45 18.00 V C57
2021-10-31 09:53:57 s 1 +10663.596 0 +373883.01 3490.0 C57
2021-10-31 10:11:38 C 05 17 54.94 +14 31 19.7 V 703
2021-10-31 10:13:57 S 05 17 19.500 +14 44 45.89 V C57
2021-10-31 10:19:42 C 05 17 52.21 +14 31 06.0 V 703
2021-10-31 10:27:47 C 05 17 49.36 +14 30 53.1 V 703
2021-10-31 10:35:50 C 05 17 46.54 +14 30 39.9 V 703
2021-10-31 10:53:57 S 05 17 04.637 +14 43 38.03 V C57
2021-10-31 11:23:57 S 05 16 53.734 +14 42 40.72 V C57
2021-10-31 11:33:57 S 05 16 50.429 +14 42 23.58 V C57
2021-10-31 12:13:57 S 05 16 35.815 +14 41 08.99 V C57
2021-10-31 12:43:57 S 05 16 25.356 +14 40 21.79 V C57
2021-10-31 13:23:57 S 05 16 10.630 +14 39 09.07 V C57
2021-10-31 13:33:57 S 05 16 07.058 +14 38 54.74 V C57
2021-10-31 13:53:57 S 05 16 00.062 +14 38 22.13 V C57
2021-10-31 14:13:57 S 05 15 52.440 +14 37 42.31 V C57
2021-10-31 14:33:57 S 05 15 45.238 +14 37 09.62 V C57
2021-10-31 14:43:57 S 05 15 41.455 +14 36 49.10 V C57
2021-10-31 14:53:57 S 05 15 37.831 +14 36 31.79 V C57
2021-10-31 15:13:57 S 05 15 30.480 +14 35 54.35 V C57
2021-10-31 16:03:57 S 05 15 12.617 +14 34 37.06 V C57
2021-10-31 16:13:57 S 05 15 09.216 +14 34 08.04 V C57
2021-10-31 16:23:57 S 05 15 05.112 +14 33 46.58 V C57
2021-10-31 16:43:57 S 05 14 58.042 +14 33 12.13 V C57
2021-10-31 16:53:57 S 05 14 54.451 +14 33 03.53 V C57
2021-10-31 17:13:57 S 05 14 47.237 +14 32 21.44 V C57
2021-10-31 17:23:57 S 05 14 43.358 +14 32 04.60 V C57
2021-10-31 17:33:57 S 05 14 40.440 +14 31 50.92 V C57
2021-10-31 18:23:57 S 05 14 21.838 +14 30 16.13 V C57
2021-10-31 18:33:57 S 05 14 18.689 +14 30 06.55 V C57
2021-10-31 19:03:57 S 05 14 07.690 +14 29 06.50 V C57
2021-10-31 19:23:57 S 05 14 00.139 +14 28 28.78 V C57
2021-10-31 19:23:57 s 1 -10098.973 0 +372661.98 5020.0 C57
2021-10-31 19:33:57 S 05 13 56.729 +14 28 15.20 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)