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
2025-12-12 12:26:24 C 09 10 40.400 -04 32 29.62 V G96
2025-12-13 11:01:03 C 09 11 28.165 -05 11 55.07 V G96
2025-12-13 11:08:25 C 09 11 28.381 -05 12 08.28 V G96
2025-12-13 11:15:47 C 09 11 28.576 -05 12 21.42 V G96
2025-12-13 11:23:09 C 09 11 28.770 -05 12 35.75 V G96
2025-12-14 11:24:26 C 09 12 17.485 -05 56 08.77 V 703
2025-12-14 11:27:39 C 09 12 17.586 -05 56 15.25 V 703
2025-12-14 11:34:06 C 09 12 17.845 -05 56 26.77 V 703
2025-12-16 02:51:15 C 09 13 34.514 -07 11 45.60 X 033
2025-12-16 02:52:08 C 09 13 34.565 -07 11 47.30 X 033
2025-12-16 02:53:00 C 09 13 34.547 -07 11 49.10 X 033
2025-12-16 02:53:53 C 09 13 34.604 -07 11 50.70 X 033
2025-12-17 02:12:34 C 09 14 18.337 -07 58 57.00 X 033
2025-12-17 02:13:24 C 09 14 18.366 -07 58 58.30 X 033
2025-12-17 02:14:12 C 09 14 18.359 -07 59 00.40 X 033
2025-12-17 02:15:00 C 09 14 18.398 -07 59 02.10 X 033
2025-12-24 15:44:56 C 09 19 07.510 -15 27 39.35 W E62
2025-12-24 16:14:15 C 09 19 07.882 -15 29 07.26 W E62
2025-12-24 16:44:13 C 09 19 08.244 -15 30 36.90 W E62
2025-12-26 10:01:27 C 09 20 03.298 -17 40 32.88 V T05
2025-12-26 10:42:40 C 09 20 03.814 -17 42 50.36 V T05
2025-12-26 10:54:30 C 09 20 03.936 -17 43 30.14 V T05
2025-12-26 11:01:46 C 09 20 04.020 -17 43 53.62 V T05
2025-12-26 13:05:16 C 09 20 05.097 -17 50 44.48 X F51
2025-12-26 13:21:31 C 09 20 05.226 -17 51 38.44 X F51
2025-12-26 13:37:46 C 09 20 05.355 -17 52 32.22 X F51
2025-12-26 13:53:59 C 09 20 05.484 -17 53 25.97 X F51
2025-12-27 11:06:04 C 09 20 32.870 -19 05 38.26 V T05
2025-12-27 11:11:20 C 09 20 32.842 -19 05 55.93 V T05
2025-12-27 11:16:37 C 09 20 32.918 -19 06 15.16 V T05
2025-12-27 11:26:24 C 09 20 33.060 -19 06 49.21 V T05
2025-12-27 23:37:05 C 09 20 46.973 -19 49 25.21 V M22
2025-12-27 23:40:27 C 09 20 47.009 -19 49 37.34 V M22
2025-12-27 23:47:40 C 09 20 47.004 -19 50 03.01 V M22
2025-12-28 00:20:08 C 09 20 47.270 -19 52 01.96 V M22
2025-12-31 00:19:33 C 09 22 02.789 -24 37 39.04 V M22
2025-12-31 00:22:09 C 09 22 02.760 -24 37 50.88 V M22
2025-12-31 00:56:58 C 09 22 02.839 -24 40 23.20 V M22
2025-12-31 01:24:20 C 09 22 02.904 -24 42 21.92 V M22
2026-01-01 11:08:29 C 09 22 36.024 -27 17 25.66 V T05
2026-01-01 11:38:00 C 09 22 36.034 -27 19 47.46 V T05
2026-01-01 11:43:18 C 09 22 36.017 -27 20 13.92 V T05
2026-01-01 11:51:09 C 09 22 36.022 -27 20 52.01 V T05
2026-01-01 12:04:58 C 09 22 35.981 -27 21 57.28 V T05
2026-01-09 05:37:18 C 09 24 52.025 -46 53 21.80 V W68
2026-01-09 05:37:57 C 09 24 52.116 -46 53 26.77 V W68
2026-01-09 05:41:14 C 09 24 52.056 -46 53 52.91 V W68
2026-01-09 05:41:53 C 09 24 52.049 -46 53 58.70 V W68
2026-01-09 05:45:09 C 09 24 52.034 -46 54 25.13 V W68
2026-01-09 05:45:48 C 09 24 51.991 -46 54 30.49 V W68
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)