2018 SP1

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5965000404 ± 1.79e-07
Semi-major axis (a)1.7581363277 AU ± 2.03e-09
Inclination (i)3.69837740° ± 9.99e-06
Long. of Asc. Node (Ω)164.56290086° ± 5.48e-05
Arg. of Perihelion (ω)286.19758855° ± 7.66e-05
Mean Anomaly (M)359.29339723° ± 2.02e-06
Mean Motion (n)0.4227985163°/day ± 7.32e-10
Perihelion dist (q)0.70940794 AU ± 3.14e-07
Aphelion dist (Q)2.80686472 AU ± 3.14e-07
Orbital Period2.33119617 yr ± 4.04e-09
Physical Parameters
H (abs. magnitude)23.20
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.251″
Uncertainty0
Orbit TypeApollo
MOID0.002797 AU
Observations Used111
Oppositions4
Arc Total2018-2025
First Observation Used2018-09-12
Last Observation Used2025-10-01
Observations (119)
Date Type RA Dec Mag Band Observatory
2018-09-12 07:22:43 C 00 49 35.38 +02 10 26.1 V G96
2018-09-12 07:30:12 C 00 49 35.88 +02 10 22.8 V G96
2018-09-12 07:37:41 C 00 49 36.42 +02 10 19.1 V G96
2018-09-19 12:57:49 C 01 07 16.297 +00 04 51.65 U F52
2018-09-19 13:12:31 C 01 07 18.170 +00 04 35.70 U F52
2018-09-19 13:27:06 C 01 07 20.037 +00 04 19.86 U F52
2018-09-19 13:41:40 C 01 07 21.901 +00 04 04.01 U F52
2018-09-19 22:12:10 C 01 08 38.93 -00 05 43.8 V L01
2018-09-19 22:18:54 C 01 08 39.84 -00 05 51.5 V L01
2018-09-19 22:25:37 C 01 08 40.79 -00 05 58.9 V L01
2018-09-20 01:19:53 C 01 09 04.49 -00 09 21.0 o K88
2018-09-20 01:26:32 C 01 09 05.42 -00 09 28.6 o K88
2018-09-20 01:33:11 C 01 09 06.37 -00 09 36.2 o K88
2018-09-20 01:58:18 C 01 09 10.32 -00 10 03.9 q 204
2018-09-20 02:12:51 C 01 09 12.34 -00 10 20.8 q 204
2018-09-20 02:27:23 C 01 09 14.37 -00 10 37.9 q 204
2018-09-20 05:37:50 C 01 09 45.67 -00 14 17.1 u H21
2018-09-20 05:47:22 C 01 09 47.01 -00 14 28.1 u H21
2018-09-20 06:18:32 C 01 09 51.37 -00 15 05.4 u H21
2018-09-20 06:29:25 C 01 09 52.91 -00 15 18.3 u H21
2018-09-20 21:42:14 C 01 12 19.75 -00 34 18.4 q K61
2018-09-20 21:43:10 C 01 12 19.94 -00 34 19.5 q K61
2018-09-20 21:44:19 C 01 12 20.12 -00 34 21.0 q K61
2018-09-20 21:49:20 C 01 12 21.26 -00 34 26.0 20.0 V 104
2018-09-20 22:01:25 C 01 12 23.14 -00 34 41.4 19.8 V 104
2018-09-20 22:13:31 C 01 12 25.03 -00 34 56.5 19.7 V 104
2018-09-21 05:43:09 C 01 13 42.05 -00 44 44.3 V I52
2018-09-21 05:46:04 C 01 13 42.52 -00 44 47.8 V I52
2018-09-21 05:46:39 C 01 13 42.63 -00 44 49.0 V I52
2018-09-21 05:52:55 C 01 13 43.60 -00 44 56.8 V I52
2018-09-21 07:20:42 C 01 13 56.35 -00 47 03.5 u H21
2018-09-21 07:25:55 C 01 13 57.18 -00 47 10.6 u H21
2018-09-21 07:36:09 C 01 13 58.82 -00 47 24.5 u H21
2018-09-21 22:28:51 C 01 16 42.70 -01 08 49.4 o K88
2018-09-21 22:36:50 C 01 16 44.13 -01 09 01.5 o K88
2018-09-21 22:45:29 C 01 16 45.67 -01 09 14.5 o K88
2018-09-29 07:36:47 C 02 22 56.27 -09 50 01.4 V I52
2018-09-29 07:36:59 C 02 22 56.38 -09 50 02.1 V I52
2018-09-29 07:37:10 C 02 22 56.54 -09 50 03.0 V I52
2018-09-29 07:37:20 C 02 22 56.72 -09 50 03.7 V I52
2018-09-29 07:55:49 C 02 23 06.66 -09 51 58.4 u H21
2018-09-29 08:00:28 C 02 23 09.91 -09 52 24.0 u H21
2018-09-29 08:03:34 C 02 23 12.11 -09 52 40.9 u H21
2018-09-30 08:05:09 C 02 43 08.65 -12 19 40.5 u H21
2018-09-30 08:10:31 C 02 43 13.54 -12 20 17.1 u H21
2018-09-30 08:15:11 C 02 43 17.77 -12 20 48.6 u H21
2018-09-30 08:19:32 C 02 43 21.72 -12 21 18.0 u H21
2018-10-02 12:09:09 C 03 49 55.89 -19 27 45.5 U T05
2018-10-02 12:23:29 C 03 50 19.51 -19 30 01.8 U T05
2018-10-02 12:24:48 C 03 50 21.60 -19 30 14.1 U T05