276770 (2004 HC)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5986572565 ± 5.29e-02
Semi-major axis (a)0.7891607054 AU ± 4.40e-03
Inclination (i)28.98361583° ± 1.28e+00
Long. of Asc. Node (Ω)202.97679703° ± 1.30e+00
Arg. of Perihelion (ω)159.37354847° ± 9.23e+00
Mean Anomaly (M)169.31522197° ± 1.41e+01
Mean Motion (n)1.4059312934°/day ± 1.18e-02
Perihelion dist (q)0.31672392 AU ± 4.18e-02
Aphelion dist (Q)1.26159749 AU ± 4.24e-02
Orbital Period0.70104868 yr ± 5.86e-03
NGA Modelr2
A2-5.89814396e-06 AU/d²
Physical Parameters
H (abs. magnitude)19.94
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-29
RMS Residual0.377″
Uncertainty0
Orbit TypeAten
MOID0.092940 AU
Observations Used230
Oppositions9
Arc Total2004-2025
First Observation Used2004-04-16
Last Observation Used2025-04-26
Observations (245)
Date Type RA Dec Mag Band Observatory
2004-04-22 05:03:02 C 10 54 04.77 +12 41 09.1 18.8 c 704
2004-04-22 05:19:07 C 10 54 00.17 +12 42 39.2 18.6 c 704
2004-04-22 05:44:13 C 10 53 52.95 +12 44 58.3 18.3 c 704
2004-04-22 06:07:08 C 10 53 46.43 +12 47 06.4 18.4 c 704
2004-04-22 20:42:51 C 10 49 48.37 +14 07 23.5 c 246
2004-04-22 20:44:47 C 10 49 47.81 +14 07 33.9 c 246
2004-04-22 20:45:46 C 10 49 47.54 +14 07 39.4 c 246
2004-04-22 20:46:45 C 10 49 47.24 +14 07 44.8 c 246
2004-04-24 21:18:49 C 10 37 02.45 +18 19 18.6 r 176
2004-04-24 21:20:47 C 10 37 01.93 +18 19 28.3 r 176
2004-04-24 21:22:45 C 10 37 01.42 +18 19 37.9 r 176
2004-04-24 21:23:43 C 10 37 01.16 +18 19 42.7 r 176
2004-04-24 21:24:43 C 10 37 00.90 +18 19 47.5 r 176
2004-04-25 19:54:20 C 10 31 23.45 +20 07 33.6 r 185
2004-04-25 20:16:04 C 10 31 17.88 +20 09 14.6 r 185
2004-05-04 03:49:36 C 09 48 31.90 +32 22 41.5 r 448
2004-05-04 03:59:17 C 09 48 30.15 +32 23 08.9 c 926
2004-05-04 04:00:46 C 09 48 29.87 +32 23 13.9 c 926
2004-05-04 04:02:15 C 09 48 29.51 +32 23 19.5 c 926
2004-05-04 04:04:30 C 09 48 29.00 +32 23 23.0 r 448
2004-05-04 04:15:22 C 09 48 26.94 +32 23 53.5 r 448
2004-05-24 04:16:34 C 08 36 31.69 +46 00 17.2 o 696
2004-05-24 04:21:02 C 08 36 30.79 +46 00 21.5 o 696
2004-05-24 04:25:31 C 08 36 30.13 +46 00 24.2 o 696
2006-03-04 11:37:39 C 09 37 00.16 -63 05 50.8 o 474
2006-03-04 11:40:39 C 09 36 59.34 -63 05 41.2 o 474
2006-03-04 11:43:20 C 09 36 58.61 -63 05 32.7 o 474
2006-03-04 11:57:09 C 09 36 55.63 -63 04 53.5 o 474
2006-03-04 12:22:00 C 09 36 49.77 -63 03 42.4 o 474
2009-04-08 03:45:35 C 19 44 54.54 +00 41 41.7 r 493
2009-04-08 03:47:42 C 19 44 55.28 +00 41 51.0 r 493
2009-04-08 03:49:48 C 19 44 56.04 +00 41 59.5 r 493
2011-03-29 03:21:52 C 13 04 09.52 -36 14 26.6 o 807
2011-03-29 03:25:29 C 13 04 08.65 -36 14 18.2 o 807
2011-03-29 03:29:06 C 13 04 07.73 -36 14 09.6 o 807
2011-03-29 03:32:42 C 13 04 06.84 -36 14 01.0 o 807
2011-04-09 22:13:03 C 11 49 03.24 -18 41 15.7 v 204
2011-04-09 22:19:15 C 11 49 01.51 -18 40 44.7 v 204
2011-04-09 22:25:10 C 11 48 59.85 -18 40 15.1 v 204
2011-04-09 22:31:13 C 11 48 58.15 -18 39 44.8 v 204
2011-04-09 22:37:17 C 11 48 56.44 -18 39 14.6 v 204
2011-04-18 20:34:45 C 10 55 00.38 +00 15 36.2 v 204
2011-04-18 20:46:01 C 10 54 57.76 +00 16 34.9 v 204
2011-04-18 20:57:05 C 10 54 55.17 +00 17 32.2 v 204
2011-04-21 20:38:38 C 10 39 35.34 +06 16 08.2 c A24
2011-04-21 20:55:43 C 10 39 31.74 +06 17 29.4 c A24
2011-04-21 21:06:10 C 10 39 29.57 +06 18 19.5 c A24
2011-04-21 21:20:28 C 10 39 26.60 +06 19 26.9 c A24
2011-04-21 21:48:00 C 10 39 20.81 +06 21 37.5 c A24
2011-04-26 04:38:47 C 10 20 09.28 +13 54 36.1 18.8 c 704