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 08:23:57 S 04 36 26.364 +11 05 58.45 V C57
2021-11-05 08:23:57 s 1 -161104.16 9 +85088.992 3080.0 C57
2021-11-05 08:43:57 S 04 36 19.987 +11 05 21.16 V C57
2021-11-05 08:43:57 s 1 -160763.99 9 +83245.382 4600.0 C57
2021-11-05 08:53:57 S 04 36 16.735 +11 05 01.86 V C57
2021-11-05 08:53:57 s 1 -160588.89 2 +82320.969 7070.0 C57
2021-11-05 09:03:57 S 04 36 13.663 +11 04 42.31 V C57
2021-11-05 09:03:57 s 1 -160410.40 2 +81394.821 7240.0 C57
2021-11-05 09:13:57 S 04 36 10.774 +11 04 27.91 V C57
2021-11-05 09:13:57 s 1 -160228.50 0 +80466.942 4990.0 C57
2021-11-05 09:23:57 S 04 36 07.548 +11 04 09.41 V C57
2021-11-05 09:23:57 s 1 -160043.16 1 +79537.337 230.0 C57
2021-11-05 09:43:57 S 04 36 01.627 +11 03 30.71 V C57
2021-11-05 09:43:57 s 1 -159662.05 8 +77672.963 2780.0 C57
2021-11-05 09:53:57 S 04 35 58.426 +11 03 13.39 V C57
2021-11-05 09:53:57 s 1 -159466.23 8 +76738.203 9900.0 C57
2021-11-05 10:33:57 S 04 35 46.495 +11 02 03.84 V C57
2021-11-05 10:33:57 s 1 -158647.16 5 +72982.127 8210.0 C57
2021-11-05 10:53:57 S 04 35 40.361 +11 01 27.55 V C57
2021-11-05 10:53:57 s 1 -158215.74 1 +71093.940 7810.0 C57
2021-11-05 11:13:57 S 04 35 34.375 +11 00 53.71 V C57
2021-11-05 11:13:57 s 1 -157769.40 3 +69199.049 3230.0 C57
2021-11-05 11:43:57 S 04 35 25.966 +11 00 00.32 V C57
2021-11-05 11:43:57 s 1 -157071.39 2 +66344.257 2820.0 C57
2021-11-05 11:53:57 S 04 35 22.320 +10 59 35.92 V C57
2021-11-05 11:53:57 s 1 -156830.99 3 +65389.365 7960.0 C57
2021-11-05 11:54:00 C 04 37 00.12 +11 07 15.2 V T05
2021-11-05 12:02:16 C 04 36 57.36 +11 07 01.2 V T05
2021-11-05 12:03:57 S 04 35 19.949 +10 59 24.61 V C57
2021-11-05 12:03:57 s 1 -156586.67 7 +64432.839 8880.0 C57
2021-11-05 12:13:57 S 04 35 16.913 +10 59 06.29 V C57
2021-11-05 12:13:57 s 1 -156338.40 9 +63474.686 5450.0 C57
2021-11-05 12:23:57 S 04 35 13.493 +10 58 47.75 V C57
2021-11-05 12:23:57 s 1 -156086.15 7 +62514.914 7570.0 C57
2021-11-05 12:33:57 S 04 35 10.942 +10 58 32.84 V C57
2021-11-05 12:33:57 s 1 -155829.88 8 +61553.531 5110.0 C57
2021-11-05 12:44:47 C 04 36 42.56 +11 05 48.8 V T05
2021-11-05 12:48:47 C 04 36 41.19 +11 05 42.1 V T05
2021-11-05 12:52:45 C 04 36 39.83 +11 05 35.4 V T05
2021-11-05 12:56:48 C 04 36 38.41 +11 05 28.2 V T05
2021-11-05 13:03:57 S 04 35 01.534 +10 57 37.01 V C57
2021-11-05 13:03:57 s 1 -155036.63 1 +58659.808 9060.0 C57
2021-11-05 13:20:19 C 04 36 30.24 +11 04 47.5 V T05
2021-11-05 13:23:57 S 04 34 55.548 +10 57 00.76 V C57
2021-11-05 13:23:57 s 1 -154487.07 2 +56722.775 9900.0 C57
2021-11-05 13:29:47 C 04 36 26.97 +11 04 31.2 V T05
2021-11-05 13:33:57 S 04 34 52.800 +10 56 45.24 V C57
2021-11-05 13:33:57 s 1 -154205.97 0 +55751.922 7390.0 C57
2021-11-05 13:43:57 S 04 34 49.831 +10 56 30.12 V C57
2021-11-05 13:43:57 s 1 -153920.60 4 +54779.526 9440.0 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)