846655 (2020 HW9)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.8307296383 ± 2.50e-08
Semi-major axis (a)1.9486959517 AU ± 8.66e-09
Inclination (i)22.06916099° ± 7.60e-06
Long. of Asc. Node (Ω)136.39404432° ± 1.53e-05
Arg. of Perihelion (ω)309.39733368° ± 1.31e-05
Mean Anomaly (M)36.99423045° ± 8.60e-06
Mean Motion (n)0.3623232070°/day ± 2.41e-09
Perihelion dist (q)0.32985647 AU ± 4.88e-08
Aphelion dist (Q)3.56753543 AU ± 5.13e-08
Orbital Period2.72029576 yr ± 1.81e-08
Physical Parameters
H (abs. magnitude)19.13
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.233″
Uncertainty0
Orbit TypeApollo
MOID0.065576 AU
Observations Used128
Oppositions9
Arc Total2011-2025
First Observation Used2011-06-26
Last Observation Used2025-05-30
Observations (134)
Date Type RA Dec Mag Band Observatory
2011-06-26 12:32:44 C 19 58 47.249 -04 22 31.60 V F51
2011-06-26 12:46:21 C 19 58 46.531 -04 22 32.31 V F51
2012-05-09 13:45:27 C 16 26 51.273 +18 41 50.32 V F51
2012-05-16 12:55:04 C 16 11 22.658 +18 47 51.65 V F51
2012-05-16 12:55:58 C 16 11 22.585 +18 47 51.24 V F51
2012-05-16 13:25:28 C 16 11 19.898 +18 47 49.54 V F51
2012-05-16 13:39:26 C 16 11 18.618 +18 47 49.18 V F51
2012-05-16 13:40:19 C 16 11 18.550 +18 47 49.28 V F51
2014-06-14 13:07:47 C 22 29 48.116 -01 44 43.52 V F51
2014-06-14 13:24:37 C 22 29 49.136 -01 44 39.63 V F51
2014-06-14 13:41:24 C 22 29 50.087 -01 44 35.72 V F51
2014-06-14 13:58:08 C 22 29 51.069 -01 44 31.90 V F51
2014-06-24 12:42:35 C 22 45 03.670 -00 52 41.39 L F51
2014-06-24 13:00:27 C 22 45 04.852 -00 52 37.99 L F51
2014-06-24 13:17:15 C 22 45 05.959 -00 52 34.56 L F51
2014-06-24 13:34:02 C 22 45 07.064 -00 52 31.05 L F51
2014-07-02 14:35:12 C 22 59 20.440 -00 16 56.93 V F51
2014-07-02 14:40:29 C 22 59 20.836 -00 16 55.90 V F51
2014-07-10 13:59:49 C 23 16 47.674 +00 09 37.26 L F51
2014-07-10 14:09:43 C 23 16 48.677 +00 09 38.23 L F51
2014-07-10 14:19:38 C 23 16 49.673 +00 09 39.37 L F51
2014-07-10 14:29:34 C 23 16 50.680 +00 09 40.39 L F51
2014-07-29 13:28:23 C 00 43 49.802 -00 06 48.14 V F51
2014-07-29 13:46:08 C 00 43 56.205 -00 06 53.33 V F51
2014-07-29 14:03:58 C 00 44 02.643 -00 06 58.52 V F51
2014-08-07 22:11:41 S 03 03 00.727 -02 11 21.84 L C51
2014-08-07 23:46:29 S 03 04 30.110 -02 12 36.61 L C51
2014-08-08 01:21:17 S 03 05 59.952 -02 13 51.42 L C51
2014-08-08 02:56:05 S 03 07 30.206 -02 15 06.34 L C51
2020-04-21 20:29:10 S 16 05 17.926 +71 05 39.26 L C51
2020-04-21 23:37:29 S 16 02 46.075 +70 55 15.31 L C51
2020-04-22 02:45:48 S 16 00 17.705 +70 44 47.44 L C51
2020-04-22 04:19:08 S 15 59 05.743 +70 39 35.35 L C51
2020-04-22 05:53:23 S 15 57 53.527 +70 34 17.58 L C51
2020-04-28 08:18:39 C 14 47 24.72 +62 02 18.2 V 703
2020-04-28 08:26:39 C 14 47 22.23 +62 01 50.0 V 703
2020-04-28 08:34:35 C 14 47 19.83 +62 01 23.5 V 703
2020-04-28 08:42:30 C 14 47 17.64 +62 00 57.5 V 703
2020-04-28 10:32:30 C 14 46 44.45 +61 54 38.6 V I52
2020-04-28 10:33:16 C 14 46 44.25 +61 54 36.0 V I52
2020-04-28 10:34:49 C 14 46 43.77 +61 54 30.7 V I52
2020-04-28 12:55:33 C 14 46 03.48 +61 46 36.6 t F65
2020-04-28 12:56:39 C 14 46 03.11 +61 46 32.9 t F65
2020-04-28 12:57:47 C 14 46 02.76 +61 46 29.3 t F65
2020-04-29 04:53:58 C 14 41 43.67 +60 52 42.1 V I52
2020-04-29 04:55:05 C 14 41 43.35 +60 52 38.9 V I52
2020-04-29 04:56:10 C 14 41 43.02 +60 52 35.4 V I52
2020-04-29 20:37:35 C 14 37 46.46 +60 00 26.5 V K63
2020-04-29 20:43:46 C 14 37 44.85 +60 00 07.2 V K63
2020-04-29 20:53:00 C 14 37 42.55 +59 59 36.6 V K63