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
1999-04-06 12:31:07 C 09 23 23.94 -16 06 57.9 z 402
1999-04-06 12:33:27 C 09 23 23.84 -16 07 02.7 z 402
1999-04-11 14:18:23 C 09 20 45.19 -19 25 18.6 422
1999-04-11 14:19:31 C 09 20 45.19 -19 25 20.4 422
1999-04-15 11:11:40 C 09 20 04.04 -22 00 33.0 422
1999-04-15 11:13:10 C 09 20 04.06 -22 00 35.6 422
1999-04-15 11:14:10 C 09 20 04.01 -22 00 37.1 422
1999-04-16 10:03:06 C 09 20 05.73 -22 39 12.3 426
1999-04-16 10:11:55 C 09 20 05.72 -22 39 26.9 426
1999-04-16 10:21:46 C 09 20 05.65 -22 39 43.9 426
1999-04-19 10:51:46 C 09 20 37.45 -24 43 27.3 422
1999-04-19 10:52:41 C 09 20 37.37 -24 43 28.6 422
1999-04-21 02:41:49 C 09 21 15.84 -25 52 41.9 z 711
1999-04-21 02:48:21 C 09 21 15.92 -25 52 53.1 z 711
1999-05-01 12:20:17 C 09 30 58.50 -33 14 58.0 426
1999-05-01 12:25:19 C 09 30 58.83 -33 15 06.6 426
1999-05-01 12:32:38 C 09 30 59.16 -33 15 19.9 426
1999-06-24 09:15:21 C 14 25 45.30 -56 07 23.8 426
1999-06-24 09:20:55 C 14 25 46.93 -56 07 19.7 426
1999-06-24 09:38:02 C 14 25 52.10 -56 07 08.4 426
2015-08-19 01:24:18 C 22 43 20.86 -03 56 35.0 t 950
2015-08-19 01:28:15 C 22 43 20.66 -03 56 35.6 t 950
2015-08-19 01:32:12 C 22 43 20.45 -03 56 35.9 t 950
2015-08-19 01:34:10 C 22 43 20.35 -03 56 36.4 t 950
2015-08-19 01:36:21 C 22 43 20.23 -03 56 36.5 t 950
2015-08-19 01:38:21 C 22 43 20.14 -03 56 36.9 t 950
2015-08-19 01:42:18 C 22 43 19.94 -03 56 37.2 t 950
2015-08-19 01:44:17 C 22 43 19.86 -03 56 37.5 t 950
2015-08-19 01:46:15 C 22 43 19.73 -03 56 38.0 t 950
2019-12-22 10:35:25 C 11 02 46.03 +09 01 34.4 u H21
2019-12-22 10:41:16 C 11 02 46.38 +09 01 31.2 u H21
2019-12-22 10:50:37 C 11 02 46.92 +09 01 26.2 u H21
2019-12-27 14:12:36 C 11 10 06.552 +07 46 07.43 U F51
2019-12-27 14:31:07 C 11 10 07.603 +07 45 55.57 U F51
2019-12-27 14:49:38 C 11 10 08.634 +07 45 44.00 U F51
2019-12-30 14:54:04 C 11 14 20.746 +06 59 43.23 U F52
2019-12-30 15:09:02 C 11 14 21.571 +06 59 33.40 U F52
2019-12-30 15:24:43 C 11 14 22.457 +06 59 23.21 U F52
2020-01-07 10:42:08 C 11 25 00.68 +04 51 43.9 V G96
2020-01-07 10:57:00 C 11 25 01.52 +04 51 33.4 V G96
2020-01-07 11:04:25 C 11 25 01.94 +04 51 27.8 V G96
2020-01-23 14:08:28 C 11 45 32.629 -00 21 15.06 U F52
2020-01-23 14:25:53 C 11 45 33.475 -00 21 30.92 U F52
2020-01-23 14:43:13 C 11 45 34.276 -00 21 46.70 U F52
2020-01-23 15:00:29 C 11 45 35.092 -00 22 02.46 U F52
2020-01-26 13:01:05 C 11 49 02.933 -01 27 52.54 U F52
2020-01-26 13:20:17 C 11 49 03.804 -01 28 10.98 U F52
2020-01-26 13:58:44 C 11 49 05.556 -01 28 48.35 U F52
2020-01-29 14:22:43 C 11 52 34.666 -02 40 39.34 U F51
2020-01-29 14:38:36 C 11 52 35.371 -02 40 55.55 U F51