497135 (2004 QD20)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6970086183 ± 3.44e-08
Semi-major axis (a)2.1734955318 AU ± 5.42e-09
Inclination (i)17.52969640° ± 5.17e-06
Long. of Asc. Node (Ω)224.19672838° ± 2.93e-05
Arg. of Perihelion (ω)353.38150449° ± 2.89e-05
Mean Anomaly (M)261.17329724° ± 6.95e-06
Mean Motion (n)0.3075913715°/day ± 1.15e-09
Perihelion dist (q)0.65855041 AU ± 7.48e-08
Aphelion dist (Q)3.68844065 AU ± 7.53e-08
Orbital Period3.20433658 yr ± 1.20e-08
Physical Parameters
H (abs. magnitude)18.08
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.312″
Uncertainty0
Orbit TypeApollo
MOID0.284978 AU
Observations Used216
Oppositions12
Arc Total2004-2022
First Observation Used2004-08-26
Last Observation Used2022-11-30
Observations (239)
Date Type RA Dec Mag Band Observatory
2004-09-16 05:15:20 C 21 25 40.75 +18 10 00.5 r 448
2004-10-08 03:10:25 C 21 26 51.50 +10 09 05.4 r 715
2004-10-08 03:33:51 C 21 26 51.88 +10 08 49.0 r 715
2006-12-11 04:45:17 C 04 21 05.42 +08 58 00.0 d 291
2006-12-11 04:50:42 C 04 21 05.05 +08 57 59.9 d 291
2006-12-11 04:56:11 C 04 21 04.69 +08 57 57.8 d 291
2007-10-04 02:22:56 C 17 49 48.74 -01 46 10.2 o 291
2007-10-04 02:28:28 C 17 49 49.90 -01 46 11.1 o 291
2007-10-04 02:33:44 C 17 49 50.72 -01 46 12.6 o 291
2014-09-28 05:37:53 C 00 37 41.72 +19 23 17.4 u H21
2014-09-28 06:01:13 C 00 37 40.55 +19 23 07.6 u H21
2014-09-28 06:26:18 C 00 37 39.29 +19 22 56.9 u H21
2016-10-27 14:49:39 C 08 18 25.048 +03 43 11.04 L F51
2016-10-27 14:58:25 C 08 18 25.667 +03 43 04.29 L F51
2016-10-27 15:08:09 C 08 18 26.363 +03 42 57.15 L F51
2017-01-01 00:41:11 S 11 25 39.886 -37 02 54.64 L C51
2017-01-01 06:58:33 S 11 27 24.326 -37 19 30.58 L C51
2017-01-01 14:49:59 S 11 29 36.727 -37 40 13.62 L C51
2017-01-01 19:33:06 S 11 30 57.26 -37 52 43.3 L C51
2017-01-01 21:07:22 S 11 31 24.21 -37 56 48.4 L C51
2017-01-01 22:41:37 S 11 31 51.25 -38 00 56.6 L C51
2017-01-02 00:16:03 S 11 32 18.53 -38 05 05.6 L C51
2017-01-02 03:24:33 S 11 33 13.05 -38 13 21.2 L C51
2017-01-02 03:24:44 S 11 33 13.05 -38 13 21.8 L C51
2017-01-02 06:33:14 S 11 34 08.08 -38 21 39.4 L C51
2017-06-18 10:27:54 C 00 27 16.99 +20 38 41.8 o 291
2017-06-18 10:47:23 C 00 27 17.78 +20 38 49.6 o 291
2017-08-15 08:54:22 C 00 28 19.48 +25 17 41.7 u H21
2017-08-15 09:16:38 C 00 28 18.54 +25 17 38.9 u H21
2017-08-15 09:41:33 C 00 28 17.50 +25 17 36.1 u H21
2017-08-16 08:15:22 C 00 27 21.53 +25 14 57.8 u H21
2017-08-16 08:37:54 C 00 27 20.59 +25 14 54.6 u H21
2017-08-16 08:58:03 C 00 27 19.71 +25 14 52.0 u H21
2017-08-31 11:29:45 C 00 09 04.11 +23 48 08.3 q G96
2017-08-31 11:34:48 C 00 09 03.75 +23 48 05.9 q G96
2017-08-31 11:38:52 C 00 09 03.56 +23 48 04.0 q G96
2019-12-23 06:47:48 C 05 33 51.62 +00 05 25.7 V G96
2019-12-23 06:55:22 C 05 33 50.99 +00 05 22.1 V G96
2019-12-23 07:02:56 C 05 33 50.35 +00 05 18.9 V G96
2019-12-23 07:10:31 C 05 33 49.74 +00 05 15.5 V G96
2020-01-02 09:27:50 C 05 13 54.806 -01 31 31.74 U F51
2020-01-02 09:45:37 C 05 13 53.305 -01 31 37.63 U F51
2020-01-02 10:03:19 C 05 13 51.817 -01 31 43.60 U F51
2020-01-02 10:21:01 C 05 13 50.315 -01 31 49.52 U F51
2020-01-18 08:38:50 C 04 44 53.706 -02 57 54.20 U F51
2020-01-18 08:57:32 C 04 44 52.428 -02 57 56.35 U F51
2020-01-28 04:27:20 C 04 31 31.08 -03 07 32.3 V G96
2020-01-28 04:34:46 C 04 31 30.72 -03 07 32.1 V G96
2020-01-28 04:42:12 C 04 31 30.36 -03 07 31.8 V G96
2020-01-28 04:49:39 C 04 31 29.98 -03 07 31.9 V G96