168318 (1989 DA)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5419202550 ± 6.75e-09
Semi-major axis (a)2.1622000196 AU ± 7.78e-10
Inclination (i)6.49287700° ± 1.73e-06
Long. of Asc. Node (Ω)349.04878527° ± 1.38e-05
Arg. of Perihelion (ω)139.84842607° ± 1.50e-05
Mean Anomaly (M)206.95638022° ± 1.28e-06
Mean Motion (n)0.3100048410°/day ± 1.67e-10
Perihelion dist (q)0.99046003 AU ± 1.46e-08
Aphelion dist (Q)3.33394001 AU ± 1.46e-08
Orbital Period3.17938997 yr ± 1.72e-09
Physical Parameters
H (abs. magnitude)19.03
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.498″
Uncertainty0
Orbit TypeApollo
MOID0.044903 AU
Observations Used944
Oppositions24
Arc Total1989-2024
First Observation Used1989-02-27
Last Observation Used2024-06-07
Observations (1516)
Date Type RA Dec Mag Band Observatory
1989-02-27 04:39:59 08 30 14.97 +46 51 27.8 675
1989-02-27 05:19:59 X 08 30 52.25 +46 45 25.2 17.0 675
1989-02-27 06:00:00 08 31 29.67 +46 39 15.3 675
1989-02-28 04:14:59 A 08 52 07.83 +43 06 48.7 675
1989-03-01 05:25:15 A 09 12 15.78 +38 55 54.7 15.5 675
1989-03-01 06:12:29 A 09 12 48.17 +38 48 02.2 675
1989-03-03 01:26:58 A 09 40 55.39 +31 35 13.0 801
1989-03-04 01:39:37 A 09 53 41.44 +27 43 48.1 801
1989-03-05 21:36:00 A 10 12 41.60 +21 17 43.9 026
1989-03-06 06:51:00 A 10 16 11.8 +20 03 45 568
1989-03-06 22:20:39 A 10 21 30.29 +18 02 41.4 15.0 054
1989-03-06 22:38:39 A 10 21 35.86 +18 00 24.2 054
1989-03-07 03:55:46 A 10 23 20.71 +17 21 25.8 801
1989-03-09 02:03:22 A 10 36 43.36 +12 09 16.4 801
1989-03-09 03:16:47 A 10 37 00.74 +12 01 45.7 801
1989-03-09 13:30:59 A 10 39 32.65 +11 02 18.0 14.0 413
1989-03-09 13:34:00 A 10 39 33.26 +11 02 00.9 413
1989-03-09 13:37:01 A 10 39 33.99 +11 01 42.1 413
1989-03-11 04:05:04 A 10 48 09.82 +07 29 59.8 801
1989-03-16 09:41:59 A 11 08 17.24 -00 43 31.1 568
1989-04-04 09:36:59 A 11 41 18.46 -11 53 33.7 568
1989-05-27 09:38:24 A 12 39 34.57 -16 12 10.8 20.0 413
2005-02-09 07:21:14 C 15 47 34.63 -21 51 43.6 o 809
2005-02-09 07:32:33 C 15 47 35.67 -21 51 51.8 o 809
2005-02-09 07:43:21 C 15 47 36.64 -21 51 59.7 o 809
2005-02-10 07:29:48 C 15 49 48.90 -22 09 02.8 o 809
2005-02-10 07:41:13 C 15 49 49.91 -22 09 10.9 o 809
2005-02-10 07:52:33 C 15 49 50.93 -22 09 19.0 o 809
2005-02-10 08:06:01 C 15 49 52.13 -22 09 28.7 o 809
2005-04-22 12:03:49 C 16 17 16.38 -33 55 24.0 o F65
2005-04-22 12:06:06 C 16 17 16.21 -33 55 24.1 o F65
2005-04-22 12:08:16 C 16 17 16.01 -33 55 24.8 o F65
2006-07-26 09:43:38 C 21 01 32.923 -23 15 43.64 o 568
2006-07-26 10:05:18 C 21 01 31.933 -23 15 47.12 o 568
2006-07-27 10:02:06 C 21 00 26.767 -23 19 40.49 o 568
2006-07-27 10:12:52 C 21 00 26.263 -23 19 42.20 o 568
2007-09-03 07:51:51 C 01 48 15.16 +14 52 39.5 22.2 o H55
2007-09-03 08:21:00 C 01 48 15.08 +14 52 44.9 22.3 o H55
2007-09-03 08:48:06 C 01 48 15.01 +14 52 51.5 22.3 o H55
2007-10-12 08:59:15 C 01 17 59.31 +16 23 50.6 r G96
2007-10-12 09:07:18 C 01 17 58.77 +16 23 50.0 r G96
2007-10-12 09:15:14 C 01 17 58.23 +16 23 49.4 r G96
2007-10-12 09:23:12 C 01 17 57.73 +16 23 49.0 r G96
2007-11-08 04:38:58 C 00 31 09.81 +14 35 41.7 20.2 c 704
2007-11-08 04:56:21 C 00 31 08.60 +14 35 39.1 20.0 c 704
2007-11-08 05:13:43 C 00 31 07.22 +14 35 34.7 20.2 c 704
2007-11-08 05:31:06 C 00 31 06.08 +14 35 31.7 20.3 c 704
2007-11-08 05:48:31 C 00 31 05.03 +14 35 27.1 19.7 c 704
2008-03-04 02:12:40 C 03 36 55.91 +26 54 42.3 r 448
2008-03-04 02:41:55 C 03 37 02.31 +26 54 49.7 r 448