2025 HS18

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5809761224 ± 1.14e-04
Semi-major axis (a)2.3851038443 AU ± 6.46e-04
Inclination (i)1.09793947° ± 1.47e-04
Long. of Asc. Node (Ω)48.97256425° ± 2.52e-04
Arg. of Perihelion (ω)152.05713128° ± 3.57e-04
Mean Anomaly (M)58.82839079° ± 2.40e-02
Mean Motion (n)0.2675785756°/day ± 1.09e-04
Perihelion dist (q)0.99941546 AU ± 3.83e-04
Aphelion dist (Q)3.77079223 AU ± 1.06e-03
Orbital Period3.68350224 yr ± 1.50e-03
Physical Parameters
H (abs. magnitude)27.34
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-03
RMS Residual0.260″
Uncertainty2
Orbit TypeApollo
MOID0.005539 AU
Observations Used103
Oppositions1
Arc Total2025-2025
First Observation Used2025-04-30
Last Observation Used2025-05-03
Observations (106)
Date Type RA Dec Mag Band Observatory
2025-04-30 09:06:38 C 13 34 56.089 +05 00 40.36 V 703
2025-04-30 09:13:15 C 13 35 15.846 +04 57 48.89 V 703
2025-04-30 09:16:33 C 13 35 25.606 +04 56 22.42 V 703
2025-04-30 09:47:37 C 13 36 57.632 +04 43 00.73 V I52
2025-04-30 09:47:52 C 13 36 58.360 +04 42 54.68 V I52
2025-04-30 09:48:07 C 13 36 59.065 +04 42 48.60 V I52
2025-04-30 09:48:22 C 13 36 59.828 +04 42 41.87 V I52
2025-04-30 10:47:45 C 13 39 56.308 +04 17 12.26 V I52
2025-04-30 10:48:20 C 13 39 58.043 +04 16 57.76 V I52
2025-04-30 10:48:56 C 13 39 59.800 +04 16 42.56 V I52
2025-04-30 10:49:31 C 13 40 01.549 +04 16 27.62 V I52
2025-04-30 12:18:42 B 13 45 23.379 +03 38 21.53 X Q06
2025-04-30 12:25:35 B 13 45 43.080 +03 35 27.66 X Q06
2025-04-30 12:32:28 B 13 46 02.754 +03 32 34.23 X Q06
2025-04-30 13:47:54 B 13 49 37.906 +03 00 49.90 W 900
2025-04-30 14:00:45 B 13 50 14.232 +02 55 26.00 W 900
2025-04-30 14:13:35 B 13 50 50.417 +02 50 03.08 W 900
2025-04-30 19:05:08 B 14 05 13.61 +00 48 10.9 V M75
2025-04-30 19:14:50 B 14 05 40.20 +00 44 14.5 V M75
2025-04-30 19:24:25 B 14 06 06.31 +00 40 23.0 V M75
2025-04-30 19:32:08 C 14 06 34.51 +00 37 07.3 Z L04
2025-04-30 19:35:29 C 14 06 43.66 +00 35 46.4 Z L04
2025-04-30 19:39:04 C 14 06 53.46 +00 34 19.6 Z L04
2025-04-30 19:50:13 B 14 07 30.63 +00 30 14.0 Z 126
2025-04-30 19:50:51 B 14 07 32.54 +00 29 55.9 Z 126
2025-04-30 19:53:32 B 14 07 39.59 +00 28 50.9 Z 126
2025-04-30 19:55:23 B 14 07 44.79 +00 28 08.1 Z 126
2025-04-30 19:59:55 B 14 07 57.26 +00 26 18.1 Z 126
2025-04-30 20:14:20 C 14 08 27.42 +00 19 55.9 X L18
2025-04-30 20:18:19 C 14 08 45.03 +00 18 47.2 V L01
2025-04-30 20:19:21 B 14 08 44.53 +00 17 50.7 X G02
2025-04-30 20:19:24 C 14 08 49.68 +00 18 30.8 V 104
2025-04-30 20:19:27 C 14 08 48.14 +00 18 19.7 V L01
2025-04-30 20:20:05 B 14 08 44.08 +00 17 59.8 X M45
2025-04-30 20:20:36 C 14 08 51.22 +00 17 52.8 V L01
2025-04-30 20:21:44 C 14 08 54.27 +00 17 26.0 V L01
2025-04-30 20:22:52 C 14 08 57.33 +00 16 58.4 V L01
2025-04-30 20:23:13 B 14 08 52.51 +00 16 44.9 X M45
2025-04-30 20:23:42 C 14 08 52.73 +00 16 10.2 X L18
2025-04-30 20:24:23 C 14 09 03.20 +00 16 31.0 V 104
2025-04-30 20:25:11 B 14 09 00.33 +00 15 30.9 X G02
2025-04-30 20:26:19 B 14 09 00.89 +00 15 30.8 X M45
2025-04-30 20:27:42 C 14 09 12.21 +00 15 11.4 V 104
2025-04-30 20:27:54 C 14 09 12.86 +00 15 19.4 V M50
2025-04-30 20:31:14 B 14 09 16.69 +00 13 06.0 X G02
2025-04-30 20:32:31 C 14 09 25.35 +00 13 29.4 V M50
2025-04-30 20:33:06 C 14 09 18.12 +00 12 26.0 X L18
2025-04-30 20:33:27 B 14 09 26.906 +00 12 02.84 X B72
2025-04-30 20:40:02 B 14 09 45.50 +00 10 19.1 X K83
2025-04-30 20:40:24 B 14 09 45.730 +00 09 16.93 X B72