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
2019-05-08 03:23:16 C 09 14 12.96 +22 18 49.3 V G96
2019-05-08 03:31:28 C 09 14 14.25 +22 18 41.8 V G96
2019-05-08 03:39:42 C 09 14 15.54 +22 18 34.2 V G96
2019-05-08 07:07:23 C 09 14 48.59 +22 15 28.0 V T05
2019-05-08 07:10:16 C 09 14 49.04 +22 15 25.3 V T05
2019-05-08 07:18:36 C 09 14 50.35 +22 15 17.7 V T05
2019-05-08 07:43:45 C 09 14 54.28 +22 14 54.5 V T05
2019-05-10 05:54:37 C 09 22 19.46 +21 31 59.1 V T08
2019-05-10 05:59:31 C 09 22 20.28 +21 31 54.6 V T08
2019-05-10 06:08:11 C 09 22 21.62 +21 31 46.3 V T08
2019-05-10 06:34:43 C 09 22 25.83 +21 31 20.9 V T08
2019-05-14 07:23:47 C 09 38 09.80 +19 55 20.2 V T08
2019-05-14 07:28:30 C 09 38 10.51 +19 55 15.4 V T08
2019-05-14 07:38:33 C 09 38 12.18 +19 55 04.7 V T08
2019-05-14 07:56:02 C 09 38 15.00 +19 54 46.4 V T08
2019-05-15 04:34:53 C 09 41 38.10 +19 33 14.6 V 703
2019-05-15 04:43:00 C 09 41 39.40 +19 33 06.3 V 703
2019-05-15 04:51:07 C 09 41 40.71 +19 32 57.8 V 703
2019-05-15 04:59:13 C 09 41 41.92 +19 32 48.7 V 703
2019-05-15 20:52:46 C 09 44 18.72 +19 16 00.3 q 160
2019-05-15 20:55:37 C 09 44 19.19 +19 15 57.3 q 160
2019-05-15 20:58:29 C 09 44 19.64 +19 15 54.1 q 160
2019-05-16 07:05:58 C 09 45 59.57 +19 05 11.9 V T05
2019-05-16 07:10:05 C 09 46 00.22 +19 05 07.3 V T05
2019-05-16 07:17:24 C 09 46 01.40 +19 04 59.2 V T05
2019-05-16 07:32:15 C 09 46 03.80 +19 04 43.3 V T05
2019-05-24 04:38:29 C 10 17 23.16 +15 29 10.0 V 703
2019-05-24 04:46:02 C 10 17 24.41 +15 29 00.7 V 703
2019-05-24 04:53:35 C 10 17 25.66 +15 28 51.7 V 703
2019-05-24 05:01:07 C 10 17 26.88 +15 28 42.4 V 703
2019-05-24 06:52:19 C 10 17 45.49 +15 26 31.8 V T05
2019-05-24 06:56:17 C 10 17 46.14 +15 26 27.0 V T05
2019-05-24 07:03:41 C 10 17 47.36 +15 26 17.8 V T05
2019-05-24 07:17:42 C 10 17 49.65 +15 26 01.0 V T05
2019-05-26 05:52:05 C 10 25 34.81 +14 29 16.2 V T08
2019-05-26 05:56:11 C 10 25 35.47 +14 29 11.0 V T08
2019-05-26 06:07:24 C 10 25 37.28 +14 28 57.3 V T08
2019-05-26 06:24:46 C 10 25 40.11 +14 28 35.6 V T08
2019-05-28 04:41:55 C 10 33 21.94 +13 30 55.4 V 703
2019-05-28 04:50:07 C 10 33 23.27 +13 30 45.0 V 703
2019-05-28 04:58:20 C 10 33 24.60 +13 30 34.6 V 703
2019-05-28 05:06:31 C 10 33 25.96 +13 30 24.4 V 703
2019-05-28 06:06:43 C 10 33 36.28 +13 29 12.2 V T05
2019-05-28 06:29:42 C 10 33 40.02 +13 28 43.0 V T05
2019-05-28 06:39:18 C 10 33 41.59 +13 28 31.0 V T05
2019-05-28 06:45:33 C 10 33 42.60 +13 28 23.0 V T05
2019-05-30 06:23:11 C 10 41 37.60 +12 27 57.5 V T08
2019-05-30 06:27:13 C 10 41 38.27 +12 27 52.7 V T08
2019-05-30 06:35:21 C 10 41 39.58 +12 27 41.7 V T08
2019-05-30 06:49:25 C 10 41 41.89 +12 27 24.2 V T08
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)