2009 HU77

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3333829185 ± 2.09e-07
Semi-major axis (a)1.6929278967 AU ± 5.82e-09
Inclination (i)23.10691153° ± 4.54e-05
Long. of Asc. Node (Ω)218.23088891° ± 8.92e-06
Arg. of Perihelion (ω)1.47308527° ± 2.80e-04
Mean Anomaly (M)186.04759701° ± 1.45e-04
Mean Motion (n)0.4474603767°/day ± 2.31e-09
Perihelion dist (q)1.12853465 AU ± 3.54e-07
Aphelion dist (Q)2.25732114 AU ± 3.54e-07
Orbital Period2.20271187 yr ± 1.14e-08
Physical Parameters
H (abs. magnitude)23.40
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.483″
Uncertainty0
Orbit TypeAmor
MOID0.121118 AU
Observations Used37
Oppositions6
Arc Total2009-2020
First Observation Used2009-04-29
Last Observation Used2020-04-28
Observations (37)
Date Type RA Dec Mag Band Observatory
2009-04-29 06:21:16 C 13 50 18.78 -12 44 00.2 r 703
2009-04-29 06:33:47 C 13 50 21.26 -12 42 21.4 r 703
2009-04-29 06:46:20 C 13 50 23.78 -12 40 41.4 r 703
2009-04-29 06:58:40 C 13 50 26.12 -12 39 04.8 r 703
2009-04-29 08:07:37 C 13 50 39.50 -12 29 56.6 r 703
2009-04-29 08:48:41 C 13 50 47.55 -12 24 29.1 r 703
2009-04-29 08:52:52 C 13 50 48.30 -12 23 55.4 r 703
2009-04-29 14:31:27 C 13 52 01.23 -11 37 52.8 r E12
2009-04-29 14:38:23 C 13 52 02.60 -11 36 57.1 r E12
2009-04-30 07:57:05 C 13 55 40.98 -09 20 33.8 r G96
2009-04-30 08:12:51 C 13 55 44.00 -09 18 27.9 r G96
2009-04-30 08:26:17 C 13 55 46.59 -09 16 41.2 r G96
2009-04-30 08:39:47 C 13 55 49.22 -09 14 53.4 r G96
2009-05-02 12:54:06 C 14 06 31.83 -02 23 33.1 o 474
2009-05-02 12:57:23 C 14 06 32.43 -02 23 07.8 o 474
2009-05-02 13:00:37 C 14 06 33.04 -02 22 43.0 o 474
2009-05-10 05:53:38 C 14 40 17.43 +17 51 36.6 o H55
2009-05-10 06:05:53 C 14 40 19.20 +17 52 38.5 o H55
2009-05-10 06:22:10 C 14 40 21.66 +17 54 04.4 o H55
2009-05-18 04:57:14 C 15 07 57.92 +30 25 59.7 o H55
2009-05-18 05:11:31 C 15 07 59.59 +30 26 41.1 o H55
2009-05-18 05:26:32 C 15 08 01.27 +30 27 23.4 o H55
2020-04-24 05:07:50 C 11 09 36.50 -22 25 17.1 V G96
2020-04-24 05:15:29 C 11 09 37.97 -22 24 39.8 V G96
2020-04-24 05:23:08 C 11 09 39.36 -22 24 00.0 V G96
2020-04-24 05:30:47 C 11 09 40.85 -22 23 21.2 V G96
2020-04-24 06:21:14 C 11 09 50.43 -22 19 04.2 V I52
2020-04-24 06:28:16 C 11 09 51.85 -22 18 27.8 V I52
2020-04-24 06:31:35 C 11 09 52.45 -22 18 11.6 V I52
2020-04-24 06:34:55 C 11 09 53.07 -22 17 53.7 V I52
2020-04-27 03:08:42 C 11 24 16.26 -16 12 58.7 V V06
2020-04-27 03:16:04 C 11 24 17.74 -16 12 18.3 V V06
2020-04-27 03:23:24 C 11 24 19.22 -16 11 37.3 V V06
2020-04-27 03:30:46 C 11 24 20.70 -16 10 57.0 V V06
2020-04-28 07:46:33 C 11 30 26.293 -13 32 10.27 U F51
2020-04-28 08:21:30 C 11 30 33.366 -13 28 51.81 U F51
2020-04-28 08:38:58 C 11 30 36.944 -13 27 11.77 U F51