1999 DB2

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6172986016 ± 3.39e-08
Semi-major axis (a)3.0155130224 AU ± 6.73e-09
Inclination (i)11.06114756° ± 9.08e-06
Long. of Asc. Node (Ω)321.34230384° ± 2.71e-05
Arg. of Perihelion (ω)258.71137278° ± 3.60e-05
Mean Anomaly (M)20.97194297° ± 3.81e-06
Mean Motion (n)0.1882220346°/day ± 6.30e-10
Perihelion dist (q)1.15404105 AU ± 1.02e-07
Aphelion dist (Q)4.87698499 AU ± 1.03e-07
Orbital Period5.23650850 yr ± 1.75e-08
Physical Parameters
H (abs. magnitude)19.00
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.444″
Uncertainty0
Orbit TypeAmor
MOID0.248713 AU
Observations Used175
Oppositions17
Arc Total1999-2020
First Observation Used1999-02-16
Last Observation Used2020-06-13
Observations (189)
Date Type RA Dec Mag Band Observatory
1999-02-16 07:31:26 C 10 32 51.09 +07 39 54.2 19.4 a 704
1999-02-16 08:01:33 C 10 32 49.55 +07 39 34.1 19.1 a 704
1999-02-16 08:31:43 C 10 32 48.31 +07 39 11.8 19.1 a 704
1999-02-16 09:01:47 C 10 32 46.78 +07 38 51.8 19.6 a 704
1999-02-16 09:32:00 C 10 32 45.06 +07 38 30.9 19.6 a 704
1999-02-18 04:54:03 C 10 30 48.87 +07 07 28.8 18.9 a 704
1999-02-18 05:24:42 C 10 30 47.33 +07 07 06.4 19.4 a 704
1999-02-18 05:55:32 C 10 30 45.57 +07 06 44.2 19.0 a 704
1999-02-18 06:26:16 C 10 30 44.25 +07 06 21.8 18.8 a 704
1999-02-18 23:41:48 C 10 29 54.37 +06 53 30.1 046
1999-02-18 23:52:55 C 10 29 53.72 +06 53 21.6 046
1999-02-18 23:58:13 C 10 29 53.46 +06 53 16.9 046
1999-02-19 00:01:15 C 10 29 53.30 +06 53 14.9 046
1999-02-19 02:18:02 C 10 29 46.24 +06 51 32.6 557
1999-02-19 02:20:53 C 10 29 46.14 +06 51 29.6 557
1999-02-19 02:23:46 C 10 29 45.98 +06 51 27.0 557
1999-02-19 04:49:58 C 10 29 39.94 +06 49 43.0 18.9 a 704
1999-02-19 05:50:38 C 10 29 36.86 +06 48 58.7 a 704
1999-02-19 06:20:49 C 10 29 35.17 +06 48 31.9 a 704
1999-02-19 06:20:53 C 10 29 34.99 +06 48 34.5 c 747
1999-02-19 06:33:19 C 10 29 34.37 +06 48 25.6 c 747
1999-02-19 06:36:35 C 10 29 34.17 +06 48 23.2 c 747
1999-02-19 06:50:47 C 10 29 33.54 +06 48 09.6 a 704
1999-02-19 07:45:02 C 10 29 30.79 +06 47 29.1 18.4 a 704
1999-02-19 08:15:19 C 10 29 29.28 +06 47 06.8 19.0 a 704
1999-02-19 08:25:30 C 10 29 28.55 +06 47 00.2 z 711
1999-02-19 08:35:48 C 10 29 28.00 +06 46 52.6 z 711
1999-02-19 08:45:39 C 10 29 27.58 +06 46 44.5 18.7 a 704
1999-02-19 08:45:55 C 10 29 27.48 +06 46 45.0 z 711
1999-02-19 09:45:55 C 10 29 24.05 +06 45 57.7 19.2 a 704
1999-02-20 08:00:11 C 10 28 17.92 +06 28 57.3 z 711
1999-02-20 08:10:30 C 10 28 17.32 +06 28 49.9 z 711
1999-02-20 08:20:21 C 10 28 16.76 +06 28 41.8 z 711
1999-02-20 14:11:00 C 10 27 59.40 +06 24 07.5 z 402
1999-02-20 14:12:48 C 10 27 59.28 +06 24 06.1 z 402
1999-02-20 21:38:59 C 10 27 36.26 +06 18 12.7 557
1999-02-20 21:42:21 C 10 27 36.04 +06 18 10.4 557
1999-02-20 21:45:43 C 10 27 35.88 +06 18 07.5 557
1999-02-21 03:45:52 C 10 27 16.64 +06 13 43.3 859
1999-02-21 03:54:51 C 10 27 16.14 +06 13 36.2 859
1999-02-21 04:04:50 C 10 27 15.57 +06 13 27.9 859
1999-02-23 02:12:56 C 10 24 45.39 +05 35 36.6 118
1999-02-23 02:18:35 C 10 24 45.06 +05 35 31.7 118
1999-02-23 02:23:40 C 10 24 44.72 +05 35 28.5 118
1999-02-24 22:43:45 C 10 22 13.25 +04 57 35.7 z 587
1999-02-24 22:53:51 C 10 22 12.57 +04 57 26.2 z 587
1999-02-24 23:02:44 C 10 22 12.08 +04 57 18.4 z 587
1999-02-24 23:11:05 C 10 22 11.52 +04 57 11.7 z 587
1999-02-25 12:44:10 C 10 21 24.07 +04 45 16.5 z 402
1999-02-25 12:45:59 C 10 21 23.83 +04 45 14.9 z 402