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
2021-11-04 21:43:57 S 04 39 46.058 +11 25 23.27 V C57
2021-11-04 21:43:57 s 1 -165982.43 7 +140339.94 4390.0 C57
2021-11-04 21:53:57 S 04 39 42.415 +11 25 04.58 V C57
2021-11-04 21:53:57 s 1 -165982.75 0 +139532.53 7990.0 C57
2021-11-04 22:03:57 S 04 39 39.732 +11 24 47.02 V C57
2021-11-04 22:03:57 s 1 -165980.97 1 +138723.37 3900.0 C57
2021-11-04 22:13:57 S 04 39 36.538 +11 24 25.81 V C57
2021-11-04 22:13:57 s 1 -165977.08 5 +137912.45 2080.0 C57
2021-11-04 22:23:57 S 04 39 33.398 +11 24 06.16 V C57
2021-11-04 22:23:57 s 1 -165971.07 9 +137099.77 2480.0 C57
2021-11-04 22:33:57 S 04 39 29.822 +11 23 48.59 V C57
2021-11-04 22:33:57 s 1 -165962.93 7 +136285.33 5050.0 C57
2021-11-04 22:43:57 S 04 39 27.130 +11 23 28.72 V C57
2021-11-04 22:43:57 s 1 -165952.64 6 +135469.13 9730.0 C57
2021-11-04 22:53:57 S 04 39 24.002 +11 23 16.33 V C57
2021-11-04 22:53:57 s 1 -165940.19 0 +134651.17 6470.0 C57
2021-11-04 23:03:57 S 04 39 20.330 +11 22 53.47 V C57
2021-11-04 23:03:57 s 1 -165925.55 7 +133831.45 5220.0 C57
2021-11-04 23:13:57 S 04 39 17.407 +11 22 28.63 V C57
2021-11-04 23:13:57 s 1 -165908.72 9 +133009.96 5920.0 C57
2021-11-04 23:23:57 S 04 39 14.028 +11 22 19.16 V C57
2021-11-04 23:23:57 s 1 -165889.69 3 +132186.70 8530.0 C57
2021-11-04 23:33:57 S 04 39 11.398 +11 21 59.98 V C57
2021-11-04 23:33:57 s 1 -165868.43 4 +131361.68 2980.0 C57
2021-11-04 23:43:57 S 04 39 07.433 +11 21 38.81 V C57
2021-11-04 23:43:57 s 1 -165844.93 5 +130534.88 9220.0 C57
2021-11-04 23:53:57 S 04 39 04.891 +11 21 25.96 V C57
2021-11-04 23:53:57 s 1 -165819.18 3 +129706.32 7210.0 C57
2021-11-05 00:03:57 S 04 39 01.644 +11 21 00.94 V C57
2021-11-05 00:03:57 s 1 -165791.16 1 +128875.98 6870.0 C57
2021-11-05 00:23:57 S 04 38 55.543 +11 20 26.74 V C57
2021-11-05 00:23:57 s 1 -165728.24 5 +127209.99 1010.0 C57
2021-11-05 00:43:57 S 04 38 49.082 +11 19 46.42 V C57
2021-11-05 00:43:57 s 1 -165656.06 0 +125536.89 1180.0 C57
2021-11-05 00:53:57 S 04 38 45.811 +11 19 32.02 V C57
2021-11-05 00:53:57 s 1 -165616.45 1 +124697.68 8390.0 C57
2021-11-05 01:03:57 S 04 38 42.902 +11 19 10.38 V C57
2021-11-05 01:03:57 s 1 -165574.47 7 +123856.69 6930.0 C57
2021-11-05 01:33:57 S 04 38 33.012 +11 18 19.48 V C57
2021-11-05 01:33:57 s 1 -165434.19 1 +121323.04 9960.0 C57
2021-11-05 01:43:57 S 04 38 29.803 +11 17 59.39 V C57
2021-11-05 01:43:57 s 1 -165382.58 5 +120474.93 3230.0 C57
2021-11-05 01:53:57 S 04 38 26.856 +11 17 42.25 V C57
2021-11-05 01:53:57 s 1 -165328.52 8 +119625.03 7540.0 C57
2021-11-05 02:03:57 S 04 38 23.969 +11 17 23.14 V C57
2021-11-05 02:03:57 s 1 -165272.00 3 +118773.35 2810.0 C57
2021-11-05 02:13:57 S 04 38 20.374 +11 17 05.17 V C57
2021-11-05 02:13:57 s 1 -165212.99 3 +117919.89 8980.0 C57
2021-11-05 02:23:57 S 04 38 17.491 +11 16 45.91 V C57
2021-11-05 02:23:57 s 1 -165151.47 9 +117064.65 5990.0 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)