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
2021-11-09 15:11:31 C 04 05 00.869 +08 20 21.37 V P07
2021-11-09 16:16:35 C 04 04 39.881 +08 18 35.53 V P07
2021-11-09 17:20:00 C 04 04 19.447 +08 16 52.36 V P07
2021-11-09 18:09:02 C 04 04 03.643 +08 15 32.69 V P07
2021-11-11 20:09:40 C 03 49 07.00 +06 55 19.6 X G02
2021-11-11 20:15:22 C 03 49 05.32 +06 55 10.8 X G02
2021-11-11 20:21:05 C 03 49 03.62 +06 55 02.2 X G02
2021-11-12 09:06:04 C 03 45 23.20 +06 36 01.5 V T05
2021-11-12 09:10:07 C 03 45 22.00 +06 35 55.2 V T05
2021-11-12 09:19:36 C 03 45 19.19 +06 35 41.2 V T05
2021-11-12 09:36:10 C 03 45 14.24 +06 35 16.3 V T05
2021-11-12 10:27:50 C 03 44 58.817 +06 33 58.92 U F51
2021-11-12 10:46:30 C 03 44 53.266 +06 33 30.89 U F51
2021-11-12 10:47:34 C 03 44 52.924 +06 33 29.26 U F51
2021-11-12 11:03:58 C 03 44 48.043 +06 33 04.59 U F51
2021-11-12 11:05:02 C 03 44 47.722 +06 33 03.03 U F51
2021-11-12 11:21:26 C 03 44 42.845 +06 32 38.38 U F51
2021-11-12 19:51:56 C 03 42 20.38 +06 19 35.9 V L18
2021-11-12 19:53:51 C 03 42 19.75 +06 19 33.7 V L18
2021-11-12 19:55:46 C 03 42 19.22 +06 19 30.8 V L18
2021-11-13 06:18:52 C 03 39 25.00 +06 04 27.8 V 703
2021-11-13 06:27:03 C 03 39 22.66 +06 04 16.1 V 703
2021-11-13 06:35:13 C 03 39 20.29 +06 04 04.0 V 703
2021-11-13 06:43:24 C 03 39 17.92 +06 03 52.3 V 703
2021-11-13 11:08:07 C 03 38 03.883 +05 57 38.03 U F51
2021-11-13 11:21:07 C 03 38 00.141 +05 57 19.20 U F51
2021-11-13 11:34:01 C 03 37 56.427 +05 57 00.53 U F51
2021-11-13 11:49:23 C 03 37 52.013 +05 56 38.28 U F51
2021-11-13 16:00:55 C 03 36 44.32 +05 50 27.9 V D29
2021-11-13 16:26:22 C 03 36 37.07 +05 49 51.6 V D29
2021-11-13 16:51:50 C 03 36 29.83 +05 49 15.0 V D29
2021-11-21 11:33:16 C 02 53 14.870 +02 10 37.96 U F52
2021-11-21 11:50:52 C 02 53 11.355 +02 10 21.91 U F52
2021-11-21 12:08:26 C 02 53 07.851 +02 10 05.81 U F52
2021-11-21 12:26:08 C 02 53 04.346 +02 09 49.68 U F52
2021-11-22 12:38:06 C 02 48 38.669 +01 49 10.92 V P07
2021-11-22 13:37:10 C 02 48 27.497 +01 48 21.56 V P07
2021-11-22 13:39:51 C 02 48 26.933 +01 48 19.22 V P07
2021-11-22 14:45:40 C 02 48 14.455 +01 47 23.64 V P07
2021-11-22 16:51:55 C 02 47 50.527 +01 45 38.77 V P07
2021-11-24 09:38:55 C 02 40 54.59 +01 13 31.8 V T05
2021-11-24 09:43:32 C 02 40 53.82 +01 13 28.2 V T05
2021-11-24 09:54:58 C 02 40 51.86 +01 13 20.4 V T05
2021-11-24 10:45:25 C 02 40 43.25 +01 12 43.6 V T05
2021-11-26 06:26:07 C 02 34 03.892 +00 43 36.40 U F51
2021-11-26 06:44:42 C 02 34 01.035 +00 43 25.00 U F51
2021-11-26 07:03:19 C 02 33 58.172 +00 43 13.60 U F51
2021-11-26 09:20:18 C 02 33 37.02 +00 41 50.5 V T08
2021-11-26 09:24:56 C 02 33 36.28 +00 41 48.0 V T08
2021-11-26 09:38:53 C 02 33 34.17 +00 41 39.3 V T08
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)