2017 HW4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3623646000
Semi-major axis (a)0.9780623000 AU
Inclination (i)18.58897000°
Long. of Asc. Node (Ω)218.30562000°
Arg. of Perihelion (ω)116.79800000°
Mean Anomaly (M)226.87116000°
Mean Motion (n)1.0189533500°/day
Perihelion dist (q)0.62364710 AU
Aphelion dist (Q)1.33247750 AU
Orbital Period0.96727460 yr
Physical Parameters
H (abs. magnitude)22.03
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.570″
Uncertainty1
Orbit TypeAten
MOID0.005058 AU
Observations Used68
Oppositions3
Arc Total2010-2018
First Observation Used
Last Observation Used2018-04-23
Observations (63)
Date Type RA Dec Mag Band Observatory
2010-01-12 14:29:39 S 02 55 34.284 -36 56 00.56 L C51
2010-01-12 17:40:11 S 02 56 11.686 -36 50 34.44 L C51
2010-01-13 00:01:24 S 02 57 25.891 -36 39 41.29 L C51
2010-01-13 01:36:34 S 02 57 44.472 -36 36 58.00 L C51
2010-01-14 01:25:55 S 03 02 15.396 -35 56 20.65 L C51
2010-01-14 04:36:26 S 03 02 50.863 -35 50 57.98 L C51
2010-01-14 07:47:08 S 03 03 25.999 -35 45 33.77 L C51
2010-01-14 10:57:39 S 03 04 00.986 -35 40 10.78 L C51
2010-01-14 14:08:10 S 03 04 35.990 -35 34 50.66 L C51
2017-04-25 06:02:29 C 10 22 11.500 -17 56 54.03 L F51
2017-04-25 06:18:16 C 10 22 05.991 -17 54 44.20 L F51
2017-04-25 06:49:52 C 10 21 54.989 -17 50 24.33 L F51
2017-04-26 04:07:34 C 10 14 57.34 -14 49 33.1 q 703
2017-04-26 04:14:39 C 10 14 54.85 -14 48 31.2 q 703
2017-04-26 04:35:24 C 10 14 47.59 -14 45 29.6 q 703
2017-04-26 05:48:26 C 10 14 22.24 -14 34 48.3 q I52
2017-04-26 05:48:52 C 10 14 22.00 -14 34 43.8 q I52
2017-04-26 05:49:43 C 10 14 21.75 -14 34 36.0 q I52
2017-04-26 10:16:58 C 10 12 56.61 -13 53 51.8 q E23
2017-04-26 10:34:58 C 10 12 50.31 -13 51 11.8 q E23
2017-04-26 10:52:58 C 10 12 44.05 -13 48 31.8 q E23
2017-04-26 21:39:48 C 10 09 10.57 -12 13 37.6 q I93
2017-04-26 21:48:09 C 10 09 07.67 -12 12 21.6 q I93
2017-04-26 21:58:19 C 10 09 04.17 -12 10 47.9 q I93
2017-04-27 03:11:00 C 10 07 23.33 -11 23 06.6 q G96
2017-04-27 03:11:34 C 10 07 23.15 -11 23 01.1 q G96
2017-04-27 03:12:09 C 10 07 22.93 -11 22 55.7 q G96
2017-04-27 03:12:44 C 10 07 22.72 -11 22 50.7 q G96
2017-04-27 23:56:11 C 10 00 31.66 -08 07 36.2 u 807
2017-04-28 00:00:26 C 10 00 30.14 -08 06 55.5 u 807
2017-04-28 00:04:42 C 10 00 28.62 -08 06 14.8 u 807
2017-04-28 01:52:26 C 09 59 51.66 -07 50 51.4 q W25
2017-04-28 02:03:00 C 09 59 47.95 -07 49 10.9 q W25
2017-04-28 04:27:42 C 09 58 58.90 -07 25 59.7 q I52
2017-04-28 04:28:18 C 09 58 58.69 -07 25 54.0 q I52
2017-04-28 04:28:54 C 09 58 58.49 -07 25 48.4 q I52
2017-04-28 04:29:29 C 09 58 58.27 -07 25 42.6 q I52
2017-04-28 09:12:04 C 09 57 26.75 -06 38 48.5 q E23
2017-04-28 09:30:04 C 09 57 20.28 -06 35 54.9 q E23
2017-04-28 09:48:04 C 09 57 13.90 -06 33 01.4 q E23
2017-04-28 19:42:05 C 09 53 55.36 -04 58 52.5 t 104
2017-04-28 19:48:18 C 09 53 53.15 -04 57 51.7 t 104
2017-04-28 19:57:17 C 09 53 49.98 -04 56 24.1 t 104
2017-04-28 20:27:32 C 09 53 40.18 -04 51 28.9 U 958
2017-04-28 20:40:12 C 09 53 35.71 -04 49 24.3 U 958
2017-04-28 22:13:00 C 09 53 02.75 -04 34 17.9 U 204
2017-04-28 22:21:45 C 09 52 59.70 -04 32 51.6 U 204
2017-04-28 22:30:38 C 09 52 56.64 -04 31 25.6 U 204
2017-04-29 03:58:21 C 09 51 09.14 -03 37 33.9 q I52
2017-04-29 03:58:57 C 09 51 08.95 -03 37 28.3 q I52