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
2021-11-05 19:13:57 S 04 33 13.658 +10 46 54.30 V C57
2021-11-05 19:13:57 s 1 -141849.02 8 +21919.148 7770.0 C57
2021-11-05 19:23:57 S 04 33 11.088 +10 46 41.41 V C57
2021-11-05 19:23:57 s 1 -141394.00 1 +20903.790 6990.0 C57
2021-11-05 19:33:57 S 04 33 08.381 +10 46 26.11 V C57
2021-11-05 19:33:57 s 1 -140933.15 9 +19887.568 5280.0 C57
2021-11-05 19:53:57 S 04 33 02.503 +10 45 50.69 V C57
2021-11-05 19:53:57 s 1 -139993.81 1 +17852.661 8280.0 C57
2021-11-05 20:03:57 S 04 32 59.522 +10 45 35.21 V C57
2021-11-05 20:03:57 s 1 -139515.19 7 +16834.042 2610.0 C57
2021-11-05 20:13:57 S 04 32 57.125 +10 45 16.56 V C57
2021-11-05 20:13:57 s 1 -139030.55 1 +15814.690 5250.0 C57
2021-11-05 20:23:57 S 04 32 53.983 +10 45 01.76 V C57
2021-11-05 20:23:57 s 1 -138539.81 6 +14794.641 5980.0 C57
2021-11-05 20:33:57 S 04 32 51.266 +10 44 41.32 V C57
2021-11-05 20:33:57 s 1 -138042.93 7 +13773.933 4630.0 C57
2021-11-05 20:43:57 S 04 32 48.528 +10 44 28.18 V C57
2021-11-05 20:43:57 s 1 -137539.85 8 +12752.601 990.0 C57
2021-11-05 21:03:57 S 04 32 43.034 +10 43 55.74 V C57
2021-11-05 21:03:57 s 1 -136514.86 8 +10708.223 6030.0 C57
2021-11-05 21:23:57 S 04 32 37.049 +10 43 18.55 V C57
2021-11-05 21:23:57 s 1 -135464.38 3 + 8661.829 9480.0 C57
2021-11-05 21:43:57 S 04 32 31.507 +10 42 44.06 V C57
2021-11-05 21:43:57 s 1 -134387.93 3 + 6613.758 9710.0 C57
2021-11-05 22:03:57 S 04 32 25.915 +10 42 11.05 V C57
2021-11-05 22:03:57 s 1 -133285.03 6 + 4564.368 5020.0 C57
2021-11-06 01:46:37 C 04 32 23.01 +10 43 05.4 V K88
2021-11-06 01:47:01 C 04 32 22.86 +10 43 04.3 V K88
2021-11-06 01:47:26 C 04 32 22.73 +10 43 03.4 V K88
2021-11-06 01:47:50 C 04 32 22.58 +10 43 03.3 V K88
2021-11-06 13:36:14 C 04 28 28.689 +10 23 13.54 U F51
2021-11-06 13:52:11 C 04 28 23.239 +10 22 45.99 U F51
2021-11-06 14:08:01 C 04 28 17.859 +10 22 18.66 U F51
2021-11-06 14:23:52 C 04 28 12.425 +10 21 50.96 U F51
2021-11-07 07:47:14 C 04 22 34.67 +09 52 05.3 V 703
2021-11-07 07:54:51 C 04 22 32.11 +09 51 52.1 V 703
2021-11-07 08:02:27 C 04 22 29.55 +09 51 39.4 V 703
2021-11-07 08:10:06 C 04 22 26.97 +09 51 26.6 V 703
2021-11-08 08:07:55 C 04 14 46.89 +09 11 08.2 V T05
2021-11-08 08:30:04 C 04 14 39.60 +09 10 31.3 V T05
2021-11-08 08:32:42 C 04 14 38.75 +09 10 27.0 V T05
2021-11-08 09:13:23 C 04 14 25.33 +09 09 19.9 V T05
2021-11-08 17:52:26 C 04 11 38.39 +08 54 44.2 V D29
2021-11-08 18:12:48 C 04 11 31.70 +08 54 10.2 V D29
2021-11-08 18:33:10 C 04 11 25.03 +08 53 36.3 V D29
2021-11-09 07:51:23 C 04 07 16.17 +08 31 36.7 V G96
2021-11-09 07:58:54 C 04 07 13.74 +08 31 24.4 V G96
2021-11-09 08:06:25 C 04 07 11.29 +08 31 11.9 V G96
2021-11-09 08:13:57 C 04 07 08.85 +08 30 59.7 V G96
2021-11-09 15:09:25 C 04 05 01.524 +08 20 24.61 V P07
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)