1999 DY2

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4652684893
Semi-major axis (a)2.0377652659 AU
Inclination (i)7.63467507°
Long. of Asc. Node (Ω)352.13930788°
Arg. of Perihelion (ω)161.37821372°
Mean Anomaly (M)66.28661559°
Mean Motion (n)0.3388459500°/day
Perihelion dist (q)1.08966420 AU
Aphelion dist (Q)2.98568200 AU
Orbital Period2.90871900 yr
Physical Parameters
H (abs. magnitude)21.90
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-18
RMS Residual0.920″
Uncertainty
Orbit TypeAmor
MOID0.105016 AU
Observations Used83
Oppositions1
Arc Total1999-1999
First Observation Used
Last Observation Used1999-04-15
Observations (83)
Date Type RA Dec Mag Band Observatory
1999-02-18 05:04:50 C 10 23 13.62 +41 07 55.8 19.5 a 704
1999-02-18 05:35:32 C 10 23 17.01 +41 06 29.8 19.3 a 704
1999-02-18 06:06:27 C 10 23 20.49 +41 05 00.5 19.3 a 704
1999-02-18 06:37:03 C 10 23 23.98 +41 03 32.0 19.4 a 704
1999-02-18 23:37:26 C 10 25 34.80 +40 12 11.1 z 587
1999-02-18 23:42:44 C 10 25 35.36 +40 11 55.3 z 587
1999-02-19 00:04:26 C 10 25 37.39 +40 10 44.8 046
1999-02-19 00:06:21 C 10 25 37.54 +40 10 39.0 046
1999-02-19 00:08:10 C 10 25 37.75 +40 10 34.1 046
1999-02-19 00:10:07 C 10 25 38.04 +40 10 28.0 046
1999-02-19 00:11:19 C 10 25 38.13 +40 10 24.1 046
1999-02-19 02:08:53 C 10 25 51.40 +40 04 16.3 557
1999-02-19 02:10:44 C 10 25 51.62 +40 04 10.7 557
1999-02-19 04:49:43 C 10 26 17.99 +39 56 17.4 18.7 a 704
1999-02-19 05:20:04 C 10 26 21.42 +39 54 49.4 18.8 a 704
1999-02-19 05:50:23 C 10 26 24.69 +39 53 18.9 a 704
1999-02-19 06:20:34 C 10 26 27.82 +39 51 48.7 a 704
1999-02-19 06:50:33 C 10 26 31.20 +39 50 14.9 a 704
1999-02-19 07:44:48 C 10 26 36.82 +39 47 26.9 18.5 a 704
1999-02-19 08:15:03 C 10 26 39.98 +39 45 53.6 a 704
1999-02-19 08:45:23 C 10 26 43.27 +39 44 19.8 a 704
1999-02-19 09:15:36 C 10 26 46.60 +39 42 42.6 a 704
1999-02-19 09:45:41 C 10 26 49.71 +39 41 06.6 a 704
1999-02-19 23:46:49 C 10 28 40.45 +38 56 48.2 z 620
1999-02-20 00:14:09 C 10 28 43.44 +38 55 21.4 z 620
1999-02-20 00:28:19 C 10 28 44.98 +38 54 36.3 z 620
1999-02-20 08:29:48 C 10 29 44.51 +38 28 54.1 z 711
1999-02-20 08:35:01 C 10 29 45.08 +38 28 36.8 z 711
1999-02-20 08:40:23 C 10 29 45.64 +38 28 19.3 z 711
1999-02-20 22:09:39 C 10 31 30.51 +37 43 33.7 557
1999-02-20 22:11:29 C 10 31 30.75 +37 43 27.8 557
1999-02-20 22:13:21 C 10 31 30.94 +37 43 21.4 557
1999-02-21 07:44:04 C 10 32 40.73 +37 11 57.5 z 711
1999-02-21 07:49:18 C 10 32 41.02 +37 11 33.4 z 711
1999-02-21 07:54:17 C 10 32 41.35 +37 11 19.0 z 711
1999-02-22 08:35:23 C 10 35 43.55 +35 46 06.5 z 711
1999-02-22 08:40:32 C 10 35 44.07 +35 45 47.9 z 711
1999-02-22 08:46:16 C 10 35 44.65 +35 45 27.5 z 711
1999-02-22 20:02:37 C 10 37 12.11 +35 04 54.2 557
1999-02-22 20:04:18 C 10 37 12.29 +35 04 47.6 557
1999-02-25 12:35:08 C 10 44 51.40 +31 03 50.4 z 402
1999-02-25 12:36:56 C 10 44 51.52 +31 03 42.9 z 402
1999-02-25 12:38:45 C 10 44 51.74 +31 03 35.5 z 402
1999-02-25 21:42:20 C 10 45 53.34 +30 27 59.8 z 587
1999-02-25 21:49:39 C 10 45 54.03 +30 27 30.8 z 587
1999-02-27 01:08:13 C 10 48 55.63 +28 38 38.4 118
1999-02-27 01:14:24 C 10 48 56.26 +28 38 13.2 118
1999-03-06 09:50:51 C 11 07 00.54 +16 11 15.2 658
1999-03-06 09:53:33 C 11 07 00.78 +16 11 04.2 658
1999-03-06 09:58:16 C 11 07 01.15 +16 10 43.0 658