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
2025-09-29 04:10:58 C 01 40 45.202 -12 42 37.62 V R17
2025-09-29 09:14:00 C 01 43 13.105 -13 15 25.34 V 703
2025-09-29 09:20:31 C 01 43 16.064 -13 16 08.54 V 703
2025-09-29 09:23:47 C 01 43 17.519 -13 16 31.69 V 703
2025-09-30 01:24:53 C 01 52 01.037 -15 11 05.75 V R17
2025-09-30 01:27:55 C 01 52 02.750 -15 11 29.54 V R17
2025-09-30 01:44:25 C 01 52 11.940 -15 13 37.96 V R17
2025-09-30 01:47:27 C 01 52 13.644 -15 14 01.79 V R17
2025-09-30 02:03:57 C 01 52 22.870 -15 16 09.70 V R17
2025-09-30 02:06:59 C 01 52 24.552 -15 16 33.74 V R17
2025-09-30 02:27:21 C 01 52 35.952 -15 19 12.29 V R17
2025-10-01 09:31:51 C 02 15 16.340 -20 03 05.62 V 703
2025-10-01 09:35:11 C 02 15 19.141 -20 03 40.72 V 703
2025-10-01 09:38:30 C 02 15 21.902 -20 04 15.53 V 703
2025-10-01 09:41:49 C 02 15 24.732 -20 04 51.02 V 703
2025-10-01 10:28:09 C 02 16 12.372 -20 12 35.93 V T08
2025-10-01 10:33:25 C 02 16 16.831 -20 13 32.66 V T08
2025-10-01 10:40:39 C 02 16 23.021 -20 14 51.00 V T08
2025-10-01 10:54:37 C 02 16 34.997 -20 17 21.59 V T08