2017 HE4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.9425712190 ± 9.33e-05
Semi-major axis (a)2.8926462801 AU ± 4.08e-03
Inclination (i)41.11246067° ± 2.30e-02
Long. of Asc. Node (Ω)208.62949467° ± 7.61e-03
Arg. of Perihelion (ω)158.99251881° ± 6.71e-03
Mean Anomaly (M)256.24427183° ± 1.30e+00
Mean Motion (n)0.2003407433°/day ± 4.24e-04
Perihelion dist (q)0.16612115 AU ± 3.57e-04
Aphelion dist (Q)5.61917141 AU ± 7.92e-03
Orbital Period4.91974956 yr ± 1.04e-02
Physical Parameters
H (abs. magnitude)21.20
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.405″
Uncertainty4
Orbit TypeApollo
MOID0.613566 AU
Observations Used59
Oppositions1
Arc Total2017-2017
First Observation Used2017-04-23
Last Observation Used2017-05-14
Observations (59)
Date Type RA Dec Mag Band Observatory
2017-04-23 09:54:16 C 15 49 48.41 +08 20 05.5 q G96
2017-04-23 10:00:23 C 15 49 47.83 +08 20 29.4 q G96
2017-04-23 10:06:31 C 15 49 47.41 +08 20 53.4 q G96
2017-04-23 10:12:39 C 15 49 46.91 +08 21 17.1 q G96
2017-04-23 10:47:32 C 15 49 43.98 +08 23 31.2 q G96
2017-04-23 10:48:38 C 15 49 43.84 +08 23 33.6 q G96
2017-04-23 10:49:42 C 15 49 43.75 +08 23 38.6 q G96
2017-04-23 10:50:47 C 15 49 43.75 +08 23 43.5 q G96
2017-04-23 14:14:03 C 15 49 27.88 +08 37 09.1 t 474
2017-04-23 14:20:50 C 15 49 27.32 +08 37 35.2 t 474
2017-04-23 14:27:38 C 15 49 26.74 +08 38 02.3 t 474
2017-04-24 09:08:29 C 15 47 52.49 +09 52 06.4 q I52
2017-04-24 09:10:35 C 15 47 52.26 +09 52 15.1 q I52
2017-04-24 09:12:41 C 15 47 52.05 +09 52 24.2 q I52
2017-04-24 09:16:31 C 15 47 51.69 +09 52 39.2 q I52
2017-04-24 09:33:28 C 15 47 50.14 +09 53 49.7 o 926
2017-04-24 09:41:17 C 15 47 49.41 +09 54 21.7 o 926
2017-04-24 09:50:56 C 15 47 48.53 +09 55 01.2 o 926
2017-04-25 07:39:57 C 15 45 48.06 +11 27 22.6 u H21
2017-04-25 07:57:59 C 15 45 46.21 +11 28 41.3 u H21
2017-04-25 08:11:14 C 15 45 44.87 +11 29 39.2 u H21
2017-04-27 00:35:59 C 15 41 28.26 +14 37 16.9 S 033
2017-04-27 00:40:26 C 15 41 27.73 +14 37 39.4 S 033
2017-04-27 00:49:24 C 15 41 26.66 +14 38 22.8 S 033
2017-04-27 00:53:53 C 15 41 26.11 +14 38 45.4 S 033
2017-04-27 01:52:43 C 15 41 19.05 +14 43 35.1 S 033
2017-04-27 08:29:24 C 15 40 32.62 +15 16 38.8 q I52
2017-04-27 08:31:43 C 15 40 32.36 +15 16 51.7 q I52
2017-04-27 08:37:14 C 15 40 31.64 +15 17 18.2 q I52
2017-04-27 08:39:34 C 15 40 31.31 +15 17 30.8 q I52
2017-04-27 10:14:32 C 15 40 19.42 +15 25 30.3 o 926
2017-04-27 10:19:51 C 15 40 18.81 +15 25 57.3 o 926
2017-04-27 10:25:12 C 15 40 18.07 +15 26 25.1 o 926
2017-04-30 05:32:13 C 15 30 50.82 +21 40 30.3 q I52
2017-04-30 05:34:31 C 15 30 50.47 +21 40 44.5 q I52
2017-04-30 05:39:00 C 15 30 49.68 +21 41 11.2 q I52
2017-04-30 05:41:18 C 15 30 49.30 +21 41 25.3 q I52
2017-05-03 06:38:29 C 15 16 24.81 +29 51 13.9 q I52
2017-05-03 06:42:49 C 15 16 23.71 +29 51 46.5 q I52
2017-05-03 06:47:09 C 15 16 22.65 +29 52 18.0 q I52
2017-05-03 06:51:29 C 15 16 21.61 +29 52 49.4 q I52
2017-05-03 09:47:21 C 15 15 38.43 +30 14 19.5 q G96
2017-05-03 09:53:19 C 15 15 36.98 +30 15 03.0 q G96
2017-05-03 09:59:20 C 15 15 35.54 +30 15 47.2 q G96
2017-05-03 10:05:18 C 15 15 34.03 +30 16 31.9 q G96
2017-05-03 11:12:33 C 15 15 17.47 +30 24 44.9 q G96
2017-05-03 11:13:08 C 15 15 17.31 +30 24 48.9 q G96
2017-05-03 11:13:43 C 15 15 17.20 +30 24 54.4 q G96
2017-05-03 11:25:27 C 15 15 14.30 +30 26 20.1 q G96
2017-05-03 11:26:01 C 15 15 14.11 +30 26 23.7 q G96