2018 HW1

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1363020000
Semi-major axis (a)1.0978952000 AU
Inclination (i)6.87379000°
Long. of Asc. Node (Ω)32.04468000°
Arg. of Perihelion (ω)120.86153000°
Mean Anomaly (M)259.13928000°
Mean Motion (n)0.8567670500°/day
Perihelion dist (q)0.94824990 AU
Aphelion dist (Q)1.24754050 AU
Orbital Period1.15038000 yr
Physical Parameters
H (abs. magnitude)25.80
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.690″
Uncertainty4
Orbit TypeApollo
MOID0.001181 AU
Observations Used42
Oppositions1
Arc Total
First Observation Used
Last Observation Used2018-05-12
Observations (57)
Date Type RA Dec Mag Band Observatory
2018-04-23 04:51:34 C 16 22 03.06 -43 03 37.5 r Y00
2018-04-23 04:53:04 C 16 21 57.72 -43 04 45.7 r Y00
2018-04-23 04:54:40 C 16 21 51.70 -43 05 58.3 r Y00
2018-04-23 05:48:31 C 16 18 37.86 -43 44 40.9 r Y00
2018-04-23 05:50:07 C 16 18 32.15 -43 45 47.9 r Y00
2018-04-23 05:51:38 C 16 18 26.75 -43 46 49.0 r Y00
2018-04-24 00:11:51 C 15 39 43.47 -52 09 11.5 r Y00
2018-04-24 00:13:30 C 15 39 40.08 -52 09 47.1 r Y00
2018-04-24 00:16:21 C 15 39 33.98 -52 10 51.9 r Y00
2018-04-24 00:17:25 C 15 39 31.62 -52 11 15.1 r Y00
2018-04-24 00:18:10 C 15 39 30.07 -52 11 31.9 r Y00
2018-04-24 00:18:54 C 15 39 28.35 -52 11 49.3 r Y00
2018-04-24 11:05:05 C 15 20 38.07 -54 51 01.6 U E94
2018-04-24 11:12:08 C 15 20 24.83 -54 52 39.0 U E94
2018-04-24 11:12:51 C 15 21 10.12 -54 49 57.9 q Q62
2018-04-24 11:14:20 C 15 21 07.52 -54 50 20.5 q Q62
2018-04-24 11:17:19 C 15 21 02.28 -54 51 05.8 q Q62
2018-04-24 11:19:12 C 15 20 11.46 -54 54 17.3 U E94
2018-04-24 13:05:24 C 15 16 49.54 -55 16 18.3 U E94
2018-04-24 13:12:23 C 15 16 36.38 -55 17 36.6 U E94
2018-04-24 13:34:34 C 15 15 54.65 -55 21 38.0 U E94
2018-04-24 13:41:34 C 15 15 41.56 -55 22 52.3 U E94
2018-04-24 18:49:32 C 15 07 32.82 -56 10 36.6 q Q62
2018-04-24 18:53:00 C 15 07 27.64 -56 10 58.3 q Q62
2018-04-25 04:10:49 C 14 58 02.57 -57 32 56.2 q Y00
2018-04-25 04:11:34 C 14 58 01.30 -57 33 00.2 q Y00
2018-04-25 04:12:19 C 14 58 00.15 -57 33 06.1 q Y00
2018-04-25 04:13:16 C 14 57 58.72 -57 33 11.7 q Y00
2018-04-25 04:14:38 C 14 57 56.40 -57 33 20.8 q Y00
2018-04-25 04:16:01 C 14 57 54.44 -57 33 29.0 q Y00
2018-04-25 04:17:03 C 14 57 52.95 -57 33 35.5 q Y00
2018-04-25 04:17:48 C 14 57 51.76 -57 33 40.6 q Y00
2018-04-25 04:18:33 C 14 57 50.62 -57 33 45.1 q Y00
2018-04-25 04:19:19 C 14 57 49.17 -57 33 50.1 q Y00
2018-04-25 04:20:11 C 14 57 48.02 -57 33 55.2 q Y00
2018-04-25 04:21:03 C 14 57 46.59 -57 34 00.7 q Y00
2018-04-25 04:22:00 C 14 57 45.07 -57 34 07.1 q Y00
2018-04-25 04:23:02 C 14 57 43.63 -57 34 14.2 q Y00
2018-04-25 04:24:04 C 14 57 42.01 -57 34 20.3 q Y00
2018-04-27 00:42:46 C 14 25 41.07 -60 27 01.3 U 807
2018-04-27 00:47:45 C 14 25 37.65 -60 27 22.0 U 807
2018-04-27 00:49:00 C 14 25 36.77 -60 27 27.2 U 807
2018-04-27 00:50:16 C 14 25 35.88 -60 27 32.4 U 807
2018-04-27 00:51:30 C 14 25 35.02 -60 27 37.5 U 807
2018-04-27 00:52:45 C 14 25 34.15 -60 27 42.6 U 807
2018-04-27 11:51:05 C 14 19 42.73 -60 53 06.9 q E08
2018-04-27 12:03:33 C 14 19 34.08 -60 53 42.0 q E08
2018-04-27 12:16:02 C 14 19 24.98 -60 54 17.9 q E08
2018-04-27 19:21:07 C 14 14 46.85 -61 01 38.9 v Q62
2018-04-27 19:23:10 C 14 14 45.93 -61 01 38.9 v Q62