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
2021-10-28 06:53:57 S 05 44 02.568 +16 44 53.02 V C57
2021-10-28 06:53:57 s 1 +155014.56 0 +261899.10 9200.0 C57
2021-10-28 09:03:57 S 05 43 18.422 +16 41 52.48 V C57
2021-10-28 09:03:57 s 1 +152021.59 6 +268395.51 9050.0 C57
2021-10-28 10:43:57 S 05 42 43.519 +16 39 27.86 V C57
2021-10-28 10:43:57 s 1 +149637.00 7 +273246.60 5610.0 C57
2021-10-28 10:53:57 S 05 42 40.207 +16 39 09.94 V C57
2021-10-28 10:53:57 s 1 +149394.74 9 +273724.77 9730.0 C57
2021-10-28 11:03:57 S 05 42 36.590 +16 38 52.48 V C57
2021-10-28 11:03:57 s 1 +149151.81 2 +274201.69 1620.0 C57
2021-10-28 11:43:57 S 05 42 23.767 +16 38 11.15 V C57
2021-10-28 11:43:57 s 1 +148173.33 7 +276096.81 6990.0 C57
2021-10-28 12:33:57 S 05 42 05.873 +16 36 49.21 V C57
2021-10-28 12:33:57 s 1 +146935.32 4 +278437.60 9560.0 C57
2021-10-28 13:23:57 S 05 41 48.953 +16 35 32.28 V C57
2021-10-28 13:23:57 s 1 +145683.50 6 +280749.15 9180.0 C57
2021-10-28 13:33:57 S 05 41 45.228 +16 35 19.57 V C57
2021-10-28 13:33:57 s 1 +145430.74 5 +281207.37 8710.0 C57
2021-10-28 16:13:57 S 05 40 50.599 +16 31 28.78 V C57
2021-10-28 16:13:57 s 1 +141302.35 4 +288371.39 4330.0 C57
2021-10-28 16:53:57 S 05 40 36.823 +16 30 37.98 V C57
2021-10-28 16:53:57 s 1 +140246.22 8 +290113.43 4330.0 C57
2021-10-28 17:13:57 S 05 40 29.772 +16 30 02.41 V C57
2021-10-28 17:13:57 s 1 +139714.67 5 +290977.15 7880.0 C57
2021-10-28 17:43:57 S 05 40 18.629 +16 29 13.45 V C57
2021-10-28 17:43:57 s 1 +138913.03 8 +292263.64 4080.0 C57
2021-10-28 18:33:57 S 05 40 01.224 +16 28 05.52 V C57
2021-10-28 18:33:57 s 1 +137565.65 5 +294383.58 7320.0 C57
2021-10-28 19:13:57 S 05 39 47.030 +16 27 04.46 V C57
2021-10-28 19:13:57 s 1 +136477.73 7 +296057.84 3130.0 C57
2021-10-28 19:53:57 S 05 39 33.331 +16 26 06.47 V C57
2021-10-28 19:53:57 s 1 +135381.08 3 +297712.89 350.0 C57
2021-10-28 21:33:57 S 05 38 59.474 +16 23 41.75 V C57
2021-10-28 21:33:57 s 1 +132602.21 6 +301766.84 1690.0 C57
2021-10-28 22:23:57 S 05 38 40.819 +16 22 24.78 V C57
2021-10-28 22:23:57 s 1 +131193.37 6 +303749.24 3980.0 C57
2021-10-28 22:33:57 S 05 38 38.525 +16 22 12.86 V C57
2021-10-28 22:33:57 s 1 +130910.09 1 +304142.16 3500.0 C57
2021-10-28 22:53:57 S 05 38 30.605 +16 21 40.93 V C57
2021-10-28 22:53:57 s 1 +130342.02 2 +304924.47 7630.0 C57
2021-10-28 23:33:57 S 05 38 16.454 +16 20 35.92 V C57
2021-10-28 23:33:57 s 1 +129199.94 8 +306474.95 6550.0 C57
2021-10-29 00:13:57 S 05 38 03.326 +16 19 31.69 V C57
2021-10-29 00:13:57 s 1 +128050.07 1 +308006.61 60.0 C57
2021-10-29 00:53:57 S 05 37 49.133 +16 18 32.40 V C57
2021-10-29 00:53:57 s 1 +126892.52 8 +309519.51 8620.0 C57
2021-10-29 01:53:57 S 05 37 28.656 +16 17 15.50 V C57
2021-10-29 01:53:57 s 1 +125142.12 8 +311753.81 660.0 C57
2021-10-29 02:33:57 S 05 37 13.805 +16 16 06.82 V C57
2021-10-29 02:33:57 s 1 +123965.99 4 +313220.06 8800.0 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)