2018 NH4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5062667000
Semi-major axis (a)2.0675665000 AU
Inclination (i)8.25917000°
Long. of Asc. Node (Ω)114.46752000°
Arg. of Perihelion (ω)145.66530000°
Mean Anomaly (M)179.01940000°
Mean Motion (n)0.3315239100°/day
Perihelion dist (q)1.02082640 AU
Aphelion dist (Q)3.11430660 AU
Orbital Period2.97296110 yr
Physical Parameters
H (abs. magnitude)24.70
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.700″
Uncertainty6
Orbit TypeAmor
MOID0.042341 AU
Observations Used22
Oppositions1
Arc Total
First Observation Used
Last Observation Used2018-08-06
Observations (22)
Date Type RA Dec Mag Band Observatory
2018-07-13 06:38:39 C 15 56 48.659 -04 47 36.72 U F51
2018-07-13 07:13:11 C 15 57 08.654 -04 52 10.55 U F51
2018-07-13 07:30:30 C 15 57 18.679 -04 54 27.81 U F51
2018-07-13 20:15:31 C 16 05 11.41 -06 36 23.1 V L01
2018-07-13 20:18:58 C 16 05 13.43 -06 36 50.7 V L01
2018-07-13 20:22:28 C 16 05 15.57 -06 37 18.9 V L01
2018-07-13 20:26:57 C 16 05 18.22 -06 37 54.3 V L01
2018-07-13 23:42:09 C 16 07 23.90 -07 01 13.7 u 807
2018-07-13 23:49:56 C 16 07 28.51 -07 02 15.6 u 807
2018-07-13 23:57:40 C 16 07 33.11 -07 03 16.9 u 807
2018-07-14 02:44:28 C 16 09 14.12 -07 27 40.3 u H21
2018-07-14 02:55:17 C 16 09 20.60 -07 29 05.7 u H21
2018-07-14 03:06:06 C 16 09 27.06 -07 30 31.6 u H21
2018-07-14 22:53:22 C 16 21 51.59 -10 06 31.3 V J95
2018-07-14 23:10:02 C 16 22 01.78 -10 08 41.4 V J95
2018-07-14 23:28:53 C 16 22 13.32 -10 11 07.5 V J95
2018-07-17 09:47:58 C 16 59 17.55 -17 20 51.8 U 474
2018-07-17 09:50:35 C 16 59 19.18 -17 21 09.1 U 474
2018-07-17 09:53:12 C 16 59 20.73 -17 21 28.0 U 474
2018-08-06 02:37:35 C 20 14 38.62 -37 36 07.5 U 807
2018-08-06 02:50:04 C 20 14 40.99 -37 36 12.2 U 807
2018-08-06 03:02:57 C 20 14 43.37 -37 36 15.8 U 807