2011 HQ4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS

Orbital Elements

Epoch (TDB)	2025-11-21 (JD 2461000.5)
Eccentricity (e)	0.5480190889
Semi-major axis (a)	2.3240853986 AU
Inclination (i)	0.66390233° ± 4.00e+00
Long. of Asc. Node (Ω)	298.69042615° ± 5.00e+00
Arg. of Perihelion (ω)	250.52195580° ± 6.00e+00
Mean Anomaly (M)	52.68209567°
Mean Motion (n)	0.2781800500°/day
Perihelion dist (q)	1.05044220 AU
Aphelion dist (Q)	3.59772840 AU
Orbital Period	3.54305660 yr

Physical Parameters

H (abs. magnitude)	25.50
G (slope)	0.15

Orbit Solution

Source	IAA
Solution Date	2026-04-18
RMS Residual	0.308″
Uncertainty	—
Orbit Type	Amor
MOID	0.052505 AU
Observations Used	16
Oppositions	1
Arc Total	2011-2011
First Observation Used	—
Last Observation Used	2011-04-27

Observations (16)

Date	Type	RA	Dec	Mag	Band	Observatory
2011-04-26 07:11:09	C	14 19 03.97	-24 34 00.0	–	r	G96
2011-04-26 07:21:59	C	14 19 08.29	-24 34 09.8	–	r	G96
2011-04-26 07:32:47	C	14 19 12.54	-24 34 19.2	–	r	G96
2011-04-26 07:44:24	C	14 19 17.04	-24 34 29.1	–	r	G96
2011-04-26 08:06:41	C	14 19 25.86	-24 34 48.8	–	r	G96
2011-04-26 08:07:58	C	14 19 26.36	-24 34 49.7	–	r	G96
2011-04-26 08:09:18	C	14 19 26.86	-24 34 50.7	–	r	G96
2011-04-26 08:10:39	C	14 19 27.37	-24 34 52.1	–	r	G96
2011-04-27 07:38:48	C	14 29 03.26	-24 53 08.7	–	r	G96
2011-04-27 07:49:11	C	14 29 07.00	-24 53 15.8	–	r	G96
2011-04-27 07:59:40	C	14 29 10.78	-24 53 22.3	–	r	G96
2011-04-27 08:10:10	C	14 29 14.56	-24 53 29.7	–	r	G96
2011-04-27 13:48:21	C	14 31 24.87	-24 54 59.0	–	o	474
2011-04-27 13:52:41	C	14 31 26.45	-24 55 01.7	–	o	474
2011-04-27 13:56:53	C	14 31 27.95	-24 55 04.9	–	o	474
2011-04-27 14:01:09	C	14 31 29.42	-24 55 06.9	–	o	474