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
1986-03-16 03:36:15 A 10 27 34.20 +32 35 22.6 A 801
1986-03-17 13:47:49 A 10 30 04.47 +32 27 02.4 883
1986-03-17 14:38:17 A 10 30 07.70 +32 26 47.5 883
1986-03-20 14:01:35 A 10 35 53.73 +32 01 51.5 14.0 883
1986-03-20 14:58:50 A 10 35 58.00 +32 01 24.9 883
1986-03-28 20:44:59 A 10 55 35.71 +29 54 37.7 14.5 552
1986-03-28 21:00:59 A 10 55 37.54 +29 54 24.3 552
1986-03-31 11:14:00 A 11 02 49.04 +28 55 48.9 398
1986-03-31 12:02:00 A 11 02 54.35 +28 55 00.7 398
1986-03-31 13:02:00 A 11 03 00.81 +28 54 00.1 398
1986-04-01 20:16:47 A 11 06 47.55 +28 20 42.6 046
1986-04-01 20:27:06 A 11 06 48.61 +28 20 31.5 046
1986-04-02 14:45:56 A 11 09 02.63 +28 00 09.9 14.0 883
1986-04-02 14:50:08 A 11 09 03.19 +28 00 05.5 883
1986-04-02 19:42:56 A 11 09 41.51 +27 54 19.7 046
1986-04-02 19:53:13 A 11 09 42.70 +27 54 08.2 046
1986-04-03 07:01:29 A 11 11 04.94 +27 41 20.4 675
1986-04-03 07:52:30 A 11 11 10.83 +27 40 18.4 675
1986-04-04 00:42:46 A 11 13 21.41 +27 19 55.4 A 801
1986-04-04 04:25:59 A 11 13 49.53 +27 15 28.4 675
1986-04-05 03:18:05 A 11 16 45.24 +26 46 35.0 A 801
1986-04-06 04:27:29 A 11 20 03.94 +26 13 29.2 688
1986-04-06 05:21:00 A 11 20 10.29 +26 12 20.1 688
1986-04-07 09:17:00 A 11 23 52.54 +25 33 51.6 568
1986-04-08 20:02:11 A 11 28 36.09 +24 42 55.8 046
1986-04-08 20:08:36 A 11 28 36.83 +24 42 45.3 046
1986-04-10 05:34:05 A 11 33 12.73 +23 51 30.9 C 657
1986-04-10 06:15:06 A 11 33 18.07 +23 50 25.7 C 657
1986-04-12 05:10:48 A 11 39 50.67 +22 34 24.9 A 801
1986-04-12 22:50:59 A 11 42 20.96 +22 04 31.1 14.0 033
1986-04-12 23:17:59 A 11 42 24.56 +22 03 44.8 033
1986-04-13 00:19:24 A 11 42 32.30 +22 02 00.0 071
1986-04-13 00:39:24 A 11 42 34.97 +22 01 27.9 071
1986-04-13 01:14:05 A 11 42 39.95 +22 00 22.6 071
1986-04-13 01:34:05 A 11 42 42.73 +21 59 52.7 071
1986-04-13 22:55:21 A 11 45 45.32 +21 23 04.9 071
1986-04-13 23:02:02 A 11 45 46.59 +21 22 49.8 071
1986-04-13 23:22:02 A 11 45 49.28 +21 22 13.7 071
1986-04-13 23:29:45 A 11 45 50.29 +21 21 59.6 071
1986-04-13 23:49:45 A 11 45 52.99 +21 21 25.1 071
1986-04-13 23:57:05 A 11 45 53.91 +21 21 11.8 071
1986-04-14 00:17:05 A 11 45 56.73 +21 20 37.5 071
1986-04-14 03:54:09 A 11 46 29.14 +21 14 18.7 A 801
1986-04-14 21:00:30 A 11 48 56.49 +20 43 55.1 046
1986-04-14 21:06:50 A 11 48 57.33 +20 43 43.3 046
1986-04-14 21:46:30 A 11 49 02.29 +20 42 35.3 071
1986-04-14 22:15:19 A 11 49 06.08 +20 41 43.5 071
1986-04-14 23:36:12 A 11 49 17.16 +20 39 14.9 071
1986-04-15 20:51:13 A 11 52 21.28 +20 00 47.7 071
1986-04-15 21:55:44 A 11 52 30.00 +19 58 50.0 071
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)