2015 HN9

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1580633698 ± 5.10e-08
Semi-major axis (a)1.2511226386 AU ± 2.83e-09
Inclination (i)14.48046790° ± 1.24e-05
Long. of Asc. Node (Ω)7.85431275° ± 5.60e-06
Arg. of Perihelion (ω)25.88017777° ± 1.97e-05
Mean Anomaly (M)15.20594303° ± 1.51e-05
Mean Motion (n)0.7043077258°/day ± 2.39e-09
Perihelion dist (q)1.05336598 AU ± 6.38e-08
Aphelion dist (Q)1.44887930 AU ± 6.38e-08
Orbital Period1.39942563 yr ± 4.74e-09
Physical Parameters
H (abs. magnitude)22.16
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.330″
Uncertainty0
Orbit TypeAmor
MOID0.064092 AU
Observations Used88
Oppositions4
Arc Total2011-2025
First Observation Used2011-10-19
Last Observation Used2025-10-16
Observations (89)
Date Type RA Dec Mag Band Observatory
2025-09-18 01:02:28 C 23 46 53.822 -44 28 29.53 V M22
2025-09-18 01:08:36 C 23 46 52.255 -44 28 09.98 V M22
2025-09-24 03:54:55 C 23 13 15.156 -34 32 53.09 V W68
2025-09-24 03:58:49 C 23 13 13.728 -34 32 29.69 V W68
2025-09-24 04:36:18 C 23 13 04.464 -34 29 24.40 V W68
2025-09-24 04:46:20 C 23 13 01.944 -34 28 32.70 V W68
2025-09-25 22:32:23 C 23 03 32.102 -30 45 31.10 V M22
2025-09-25 22:36:56 C 23 03 30.989 -30 45 05.80 V M22
2025-09-25 22:45:20 C 23 03 28.812 -30 44 17.92 V M22
2025-09-25 23:01:54 C 23 03 24.670 -30 42 43.31 V M22
2025-10-01 04:22:43 C 22 36 38.999 -17 25 16.00 V 703
2025-10-01 04:29:11 C 22 36 37.516 -17 24 30.46 V 703
2025-10-01 04:32:24 C 22 36 36.792 -17 24 07.78 V 703
2025-10-01 23:07:53 C 22 32 51.838 -15 13 18.01 X B67
2025-10-01 23:10:16 C 22 32 51.307 -15 13 01.56 X B67
2025-10-01 23:12:40 C 22 32 50.762 -15 12 44.64 X B67
2025-10-05 19:14:33 C 22 16 00.28 -04 07 31.6 V G17
2025-10-05 19:32:40 C 22 15 56.81 -04 05 20.6 V G17
2025-10-05 19:53:12 C 22 15 52.82 -04 02 52.3 V G17
2025-10-07 20:28:12 B 22 07 53.774 +01 42 58.97 V 160
2025-10-07 20:32:10 B 22 07 53.088 +01 43 26.36 V 160
2025-10-07 20:38:10 B 22 07 52.044 +01 44 08.30 V 160
2025-10-08 18:59:24 B 22 04 27.588 +04 18 29.38 W L47
2025-10-08 19:03:59 B 22 04 26.861 +04 18 59.15 W L47
2025-10-08 19:08:35 B 22 04 26.035 +04 19 30.83 W L47
2025-10-08 19:13:09 B 22 04 25.147 +04 20 01.90 W L47
2025-10-08 20:50:57 C 22 04 08.57 +04 31 08.6 V 104
2025-10-08 20:59:21 C 22 04 07.10 +04 32 06.1 V 104
2025-10-08 21:07:29 C 22 04 05.74 +04 33 00.9 V 104
2025-10-09 16:06:50 C 22 01 14.87 +06 40 53.2 V D29
2025-10-09 16:21:52 C 22 01 12.44 +06 42 32.5 V D29
2025-10-09 16:36:53 C 22 01 10.03 +06 44 11.6 V D29
2025-10-13 21:20:23 C 21 48 08.314 +17 00 29.81 V R17
2025-10-13 21:46:01 C 21 48 04.673 +17 02 52.19 V R17
2025-10-13 22:05:33 C 21 48 01.939 +17 04 40.62 V R17
2025-10-13 22:25:03 C 21 47 59.208 +17 06 28.33 V R17
2025-10-16 19:45:00 B 21 40 38.68 +23 03 50.8 X 122
2025-10-16 19:53:09 B 21 40 37.73 +23 04 29.9 X 122
2025-10-16 20:00:47 B 21 40 36.84 +23 05 06.3 X 122