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
1999-02-25 12:47:49 C 10 21 23.65 +04 45 13.0 z 402
1999-03-06 08:26:57 C 10 07 34.01 +01 15 17.8 658
1999-03-06 08:29:36 C 10 07 33.84 +01 15 14.5 658
1999-03-06 08:35:13 C 10 07 33.46 +01 15 08.6 658
1999-03-06 11:12:41 C 10 07 23.29 +01 12 42.6 z 428
1999-03-06 11:33:57 C 10 07 21.80 +01 12 18.9 z 428
1999-03-06 20:52:26 C 10 06 42.53 +01 01 36.9 d 046
1999-03-06 20:54:38 C 10 06 42.41 +01 01 34.9 d 046
1999-03-06 20:56:57 C 10 06 42.25 +01 01 32.2 d 046
1999-03-11 21:58:58 C 09 58 04.97 -01 19 32.7 118
1999-03-11 22:09:46 C 09 58 04.12 -01 19 45.6 118
1999-03-12 12:35:34 C 09 57 02.28 -01 37 00.2 422
1999-03-12 12:36:50 C 09 57 02.15 -01 37 01.5 422
1999-03-12 12:38:13 C 09 57 02.05 -01 37 03.1 422
1999-03-13 21:15:54 C 09 54 42.17 -02 18 18.3 104
1999-03-13 21:18:49 C 09 54 42.00 -02 18 21.4 104
1999-03-13 21:20:46 C 09 54 41.86 -02 18 23.9 104
1999-03-13 21:23:29 C 09 54 41.66 -02 18 27.3 104
1999-03-13 21:55:37 C 09 54 39.03 -02 19 09.5 118
1999-03-13 21:57:29 C 09 54 38.88 -02 19 11.9 118
1999-03-13 22:01:50 C 09 54 38.58 -02 19 17.7 118
1999-03-15 13:11:19 C 09 51 51.59 -03 08 57.2 422
1999-03-15 13:12:49 C 09 51 51.46 -03 08 58.9 422
1999-03-15 22:07:50 C 09 51 13.96 -03 21 05.6 z 587
1999-03-15 22:13:31 C 09 51 13.50 -03 21 12.7 z 587
1999-03-15 22:41:00 C 09 51 11.25 -03 21 48.6 118
1999-03-15 22:44:23 C 09 51 10.96 -03 21 53.8 118
1999-03-16 12:57:23 C 09 50 11.66 -03 40 29.1 z 402
1999-03-16 12:59:12 C 09 50 11.48 -03 40 31.2 z 402
1999-03-16 13:01:02 C 09 50 11.38 -03 40 33.4 z 402
1999-03-16 15:51:29 C 09 49 58.55 -03 44 18.1 360
1999-03-16 15:56:00 C 09 49 58.20 -03 44 24.0 360
1999-03-16 16:00:14 C 09 49 57.93 -03 44 29.1 360
1999-03-16 22:32:28 C 09 49 30.91 -03 53 13.3 118
1999-03-18 19:26:55 C 09 46 26.18 -04 53 31.8 118
1999-03-18 19:35:10 C 09 46 25.55 -04 53 42.4 118
1999-03-18 19:37:43 C 09 46 25.35 -04 53 45.8 118
1999-03-20 06:50:43 C 09 44 02.95 -05 42 08.4 658
1999-03-20 06:55:22 C 09 44 02.58 -05 42 14.5 658
1999-03-20 06:59:37 C 09 44 02.28 -05 42 21.0 658
1999-03-21 02:40:03 C 09 42 44.26 -06 09 16.7 z 860
1999-03-21 02:47:09 C 09 42 43.72 -06 09 28.6 z 860
1999-04-05 11:44:59 C 09 24 09.84 -15 27 12.9 360
1999-04-05 11:48:45 C 09 24 09.66 -15 27 18.1 360
1999-04-05 11:52:45 C 09 24 09.51 -15 27 24.9 360
1999-04-06 10:52:44 C 09 23 27.15 -16 03 50.9 422
1999-04-06 10:55:13 C 09 23 27.09 -16 03 55.4 422
1999-04-06 10:56:15 C 09 23 27.00 -16 03 56.8 422
1999-04-06 10:58:02 C 09 23 26.96 -16 03 59.5 422
1999-04-06 12:28:48 C 09 23 24.12 -16 06 54.4 z 402