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 02:33:57 S 04 38 14.376 +11 16 27.70 V C57
2021-11-05 02:33:57 s 1 -165087.44 4 +116207.62 3780.0 C57
2021-11-05 02:43:57 S 04 38 10.958 +11 16 07.72 V C57
2021-11-05 02:43:57 s 1 -165020.87 0 +115348.80 2280.0 C57
2021-11-05 03:03:57 S 04 38 04.685 +11 15 36.07 V C57
2021-11-05 03:03:57 s 1 -164880.03 0 +113625.82 1140.0 C57
2021-11-05 03:13:57 S 04 38 01.342 +11 15 15.01 V C57
2021-11-05 03:13:57 s 1 -164805.72 7 +112761.64 1370.0 C57
2021-11-05 03:23:57 S 04 37 58.363 +11 14 59.96 V C57
2021-11-05 03:23:57 s 1 -164728.81 0 +111895.69 2050.0 C57
2021-11-05 03:43:57 S 04 37 52.423 +11 14 18.35 V C57
2021-11-05 03:43:57 s 1 -164567.05 9 +110158.41 4450.0 C57
2021-11-05 03:53:57 S 04 37 49.286 +11 14 00.82 V C57
2021-11-05 03:53:57 s 1 -164482.18 7 +109287.09 6040.0 C57
2021-11-05 04:03:57 S 04 37 46.044 +11 13 46.99 V C57
2021-11-05 04:03:57 s 1 -164394.62 3 +108413.99 7800.0 C57
2021-11-05 04:13:57 S 04 37 42.746 +11 13 27.91 V C57
2021-11-05 04:13:57 s 1 -164304.34 8 +107539.10 9650.0 C57
2021-11-05 04:23:57 S 04 37 39.739 +11 13 10.27 V C57
2021-11-05 04:23:57 s 1 -164211.34 3 +106662.43 1520.0 C57
2021-11-05 04:33:57 S 04 37 36.866 +11 12 50.51 V C57
2021-11-05 04:33:57 s 1 -164115.58 7 +105783.97 3340.0 C57
2021-11-05 04:43:57 S 04 37 33.722 +11 12 29.99 V C57
2021-11-05 04:43:57 s 1 -164017.05 9 +104903.73 5040.0 C57
2021-11-05 05:13:57 S 04 37 24.552 +11 11 41.75 V C57
2021-11-05 05:13:57 s 1 -163704.64 0 +102252.29 8650.0 C57
2021-11-05 05:33:57 S 04 37 18.336 +11 10 59.41 V C57
2021-11-05 05:33:57 s 1 -163482.11 9 +100475.76 9070.0 C57
2021-11-05 05:53:57 S 04 37 11.837 +11 10 24.56 V C57
2021-11-05 05:53:57 s 1 -163248.00 5 +98692.109 7170.0 C57
2021-11-05 06:13:57 S 04 37 05.770 +11 09 49.86 V C57
2021-11-05 06:13:57 s 1 -163002.12 0 +96901.345 2320.0 C57
2021-11-05 06:33:57 S 04 36 59.863 +11 09 09.32 V C57
2021-11-05 06:33:57 s 1 -162744.28 5 +95103.481 3880.0 C57
2021-11-05 06:53:57 S 04 36 53.666 +11 08 36.64 V C57
2021-11-05 06:53:57 s 1 -162474.31 6 +93298.529 1180.0 C57
2021-11-05 07:03:57 S 04 36 50.436 +11 08 18.92 V C57
2021-11-05 07:03:57 s 1 -162334.72 2 +92393.401 3030.0 C57
2021-11-05 07:13:57 S 04 36 47.582 +11 08 01.50 V C57
2021-11-05 07:13:57 s 1 -162192.02 5 +91486.506 3560.0 C57
2021-11-05 07:33:57 S 04 36 41.554 +11 07 26.08 V C57
2021-11-05 07:33:57 s 1 -161897.22 1 +89667.427 330.0 C57
2021-11-05 07:43:57 S 04 36 38.129 +11 07 02.75 V C57
2021-11-05 07:43:57 s 1 -161745.06 5 +88755.248 6390.0 C57
2021-11-05 07:53:57 S 04 36 35.155 +11 06 49.25 V C57
2021-11-05 07:53:57 s 1 -161589.70 7 +87841.312 790.0 C57
2021-11-05 08:03:57 S 04 36 31.978 +11 06 32.54 V C57
2021-11-05 08:03:57 s 1 -161431.12 2 +86925.622 3430.0 C57
2021-11-05 08:13:57 S 04 36 29.090 +11 06 12.64 V C57
2021-11-05 08:13:57 s 1 -161269.28 5 +86008.181 4220.0 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)