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 19:33:57 s 1 -10462.605 0 +372610.49 6370.0 C57
2021-10-31 19:53:57 S 05 13 49.097 +14 27 37.01 V C57
2021-10-31 19:53:57 s 1 -11189.744 0 +372504.38 8350.0 C57
2021-10-31 20:03:57 S 05 13 45.660 +14 27 22.10 V C57
2021-10-31 20:03:57 s 1 -11553.248 0 +372449.77 8970.0 C57
2021-10-31 20:23:57 S 05 13 38.801 +14 26 46.14 V C57
2021-10-31 20:23:57 s 1 -12280.121 0 +372337.42 9480.0 C57
2021-10-31 20:33:57 S 05 13 34.757 +14 26 28.00 V C57
2021-10-31 20:33:57 s 1 -12643.489 0 +372279.68 9350.0 C57
2021-10-31 21:03:57 S 05 13 24.290 +14 25 34.50 V C57
2021-10-31 21:03:57 s 1 -13733.300 0 +372100.23 7400.0 C57
2021-10-31 21:13:57 S 05 13 20.686 +14 25 17.94 V C57
2021-10-31 21:13:57 s 1 -14096.469 0 +372038.34 6210.0 C57
2021-10-31 21:23:57 S 05 13 16.762 +14 25 00.23 V C57
2021-10-31 21:23:57 s 1 -14459.588 0 +371975.39 4750.0 C57
2021-10-31 21:33:57 S 05 13 13.354 +14 24 43.78 V C57
2021-10-31 21:33:57 s 1 -14822.653 0 +371911.41 3020.0 C57
2021-10-31 21:43:57 S 05 13 09.694 +14 24 25.42 V C57
2021-10-31 21:43:57 s 1 -15185.664 0 +371846.39 1000.0 C57
2021-10-31 21:53:57 S 05 13 06.470 +14 24 05.18 V C57
2021-10-31 21:53:57 s 1 -15548.620 0 +371780.32 8700.0 C57
2021-10-31 22:53:57 S 05 12 44.734 +14 22 28.09 V C57
2021-10-31 22:53:57 s 1 -17725.144 0 +371362.03 8700.0 C57
2021-10-31 23:13:57 S 05 12 37.025 +14 21 41.33 V C57
2021-10-31 23:13:57 s 1 -18450.165 0 +371214.25 9590.0 C57
2021-10-31 23:53:57 S 05 12 22.711 +14 20 22.67 V C57
2021-10-31 23:53:57 s 1 -19899.427 0 +370906.17 7520.0 C57
2021-11-01 00:13:57 S 05 12 15.151 +14 19 54.95 V C57
2021-11-01 00:13:57 s 1 -20623.650 0 +370745.86 4510.0 C57
2021-11-01 00:23:57 S 05 12 11.926 +14 19 40.04 V C57
2021-11-01 00:23:57 s 1 -20985.657 0 +370664.14 7490.0 C57
2021-11-01 00:43:57 S 05 12 05.278 +14 19 00.66 V C57
2021-11-01 00:43:57 s 1 -21709.453 0 +370497.55 2430.0 C57
2021-11-01 01:13:57 S 05 11 54.401 +14 18 11.52 V C57
2021-11-01 01:13:57 s 1 -22794.592 0 +370239.83 7180.0 C57
2021-11-01 02:03:57 S 05 11 36.139 +14 16 32.74 V C57
2021-11-01 02:03:57 s 1 -24601.603 0 +369789.35 7800.0 C57
2021-11-01 02:13:57 S 05 11 32.299 +14 16 20.57 V C57
2021-11-01 02:13:57 s 1 -24962.763 0 +369696.11 6800.0 C57
2021-11-01 02:23:57 S 05 11 28.877 +14 16 00.66 V C57
2021-11-01 02:23:57 s 1 -25323.839 0 +369601.82 5410.0 C57
2021-11-01 02:33:57 S 05 11 24.655 +14 15 45.43 V C57
2021-11-01 02:33:57 s 1 -25684.831 0 +369506.48 3630.0 C57
2021-11-01 02:43:57 S 05 11 20.942 +14 15 22.68 V C57
2021-11-01 02:43:57 s 1 -26045.738 0 +369410.10 1460.0 C57
2021-11-01 03:03:57 S 05 11 13.970 +14 14 47.04 V C57
2021-11-01 03:03:57 s 1 -26767.290 0 +369214.18 5920.0 C57
2021-11-01 03:13:57 S 05 11 10.555 +14 14 28.46 V C57
2021-11-01 03:13:57 s 1 -27127.934 0 +369114.64 2550.0 C57
2021-11-01 03:33:57 S 05 11 03.979 +14 14 04.13 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)