6178 (1986 DA)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5847926253 ± 7.18e-09
Semi-major axis (a)2.8137367896 AU ± 2.72e-09
Inclination (i)4.31447227° ± 1.53e-06
Long. of Asc. Node (Ω)64.47833583° ± 2.13e-05
Arg. of Perihelion (ω)127.46608007° ± 2.14e-05
Mean Anomaly (M)138.35738287° ± 1.70e-06
Mean Motion (n)0.2088272035°/day ± 3.03e-10
Perihelion dist (q)1.16828427 AU ± 2.02e-08
Aphelion dist (Q)4.45918931 AU ± 2.07e-08
Orbital Period4.71981747 yr ± 6.86e-09
Physical Parameters
H (abs. magnitude)15.71
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.248″
Uncertainty0
Orbit TypeAmor
MOID0.179159 AU
Observations Used1282
Radar Obs Used2
Oppositions7
Arc Total1977-2025
First Observation Used1977-07-17
Last Observation Used2025-09-25
Observations (1381)
Date Type RA Dec Mag Band Observatory
1986-04-16 01:07:39 A 11 52 56.47 +19 52 50.0 071
1986-04-16 01:32:39 A 11 53 00.29 +19 52 06.7 071
1986-04-16 23:51:58 A 11 56 13.46 +19 10 44.6 071
1986-04-17 00:07:32 A 11 56 15.54 +19 10 14.6 071
1986-04-17 00:32:32 A 11 56 18.98 +19 09 28.8 071
1986-04-17 01:30:06 A 11 56 27.30 +19 07 37.5 071
1986-04-17 01:55:05 A 11 56 30.84 +19 06 51.1 071
1986-04-18 01:00:48 A 11 59 50.81 +18 23 11.4 071
1986-04-18 01:23:16 A 11 59 54.16 +18 22 26.3 071
1986-04-18 01:48:16 A 11 59 57.57 +18 21 42.8 071
1986-04-26 06:38:09 A 12 28 13.71 +11 48 11.3 568
1986-04-30 05:32:35 A 12 41 22.12 +08 33 22.8 657
1986-04-30 08:55:00 A 12 41 49.00 +08 26 46.3 568
1986-05-01 06:19:29 A 12 44 44.79 +07 43 16.1 568
1986-05-01 21:07:05 A 12 46 42.76 +07 13 05.1 046
1986-05-01 21:13:25 A 12 46 43.61 +07 12 52.5 046
1986-05-02 20:50:49 A 12 49 53.08 +06 25 22.4 046
1986-05-02 20:57:09 A 12 49 53.83 +06 25 11.2 046
1986-05-03 21:15:58 A 12 53 06.40 +05 36 43.1 046
1986-05-03 21:22:22 A 12 53 07.18 +05 36 30.9 046
1986-05-04 05:14:45 A 12 54 09.33 +05 21 03.8 688
1986-05-04 05:40:50 A 12 54 12.50 +05 20 11.6 688
1986-05-04 20:54:57 A 12 56 11.98 +04 50 05.0 046
1986-05-04 21:01:17 A 12 56 12.73 +04 49 51.7 046
1986-05-04 21:12:33 A 12 56 14.09 +04 49 31.0 046
1986-05-04 21:19:53 A 12 56 14.99 +04 49 16.2 046
1986-05-10 03:58:52 A 13 12 13.52 +00 49 24.1 A 801
1986-05-11 03:32:48 A 13 15 05.33 +00 07 37.8 808
1986-05-12 21:38:05 A 13 20 07.47 -01 07 07.5 046
1986-05-12 21:45:05 A 13 20 08.42 -01 07 18.8 046
1986-05-26 21:11:59 A 13 56 39.34 -09 24 09.9 046
1986-05-26 21:20:30 A 13 56 40.26 -09 24 20.9 046
1986-06-03 02:03:20 A 14 13 17.51 -12 37 59.1 A 801
1986-06-06 06:39:10 A 14 20 17.25 -13 52 09.1 B 691
1986-06-06 07:05:13 A 14 20 19.49 -13 52 32.7 B 691
1986-06-07 06:45:20 A 14 22 27.05 -14 14 11.2 B 691
1986-06-07 07:01:35 A 14 22 28.45 -14 14 25.7 B 691
1986-06-07 07:15:11 A 14 22 29.59 -14 14 37.8 B 691
1986-06-09 02:39:49 A 14 26 21.62 -14 52 46.7 A 801
1986-07-24 04:11:11 A 15 53 32.53 -23 56 43.2 675
1986-07-24 04:23:59 A 15 53 33.49 -23 56 46.6 675
1986-07-24 04:27:59 A 15 53 33.79 -23 56 47.6 675
1986-07-25 03:53:35 A 15 55 22.86 -24 03 10.5 675
1986-07-25 04:03:59 A 15 55 23.66 -24 03 13.4 675
1986-07-26 04:02:29 A 15 57 15.10 -24 09 37.2 675
1986-07-26 04:11:35 A 15 57 15.81 -24 09 39.5 675
1986-07-30 04:18:04 A 16 04 42.61 -24 33 44.4 B 691
1986-07-30 04:33:00 A 16 04 43.73 -24 33 47.8 B 691
1986-07-30 04:46:51 A 16 04 44.78 -24 33 50.8 B 691
1986-08-16 04:51:23 A 16 36 26.42 -25 53 15.4 675
Radar Observations (4)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
1986-04-19 02:00:00 -20592.8 1 Hz 2380 -1 -1
1986-04-19.083333 -2059280 100 Hz 2380 251 251
1986-04-21 02:56:00 209263398 8 us 2380 -1 -1
1986-04-21.122222 20926339800 8000 us 2380 251 251
Station codes
-1 Arecibo (305-m, 1963–2020)