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
2019-03-04 21:53:17 S 06 29 48.65 +31 48 55.6 L C51
2019-03-04 23:27:32 S 06 29 51.57 +31 48 51.6 L C51
2019-03-05 01:01:47 S 06 29 54.49 +31 48 47.4 L C51
2019-03-05 02:36:03 S 06 29 57.42 +31 48 43.1 L C51
2019-03-05 03:39:21 C 06 29 59.23 +31 48 40.9 V G96
2019-03-05 03:47:33 C 06 29 59.46 +31 48 40.5 V G96
2019-03-05 03:55:48 C 06 29 59.69 +31 48 40.1 V G96
2019-03-05 04:04:00 C 06 29 59.91 +31 48 39.7 V G96
2019-03-05 04:09:22 S 06 30 00.32 +31 48 39.9 L C51
2019-03-05 04:09:33 S 06 30 00.35 +31 48 39.6 L C51
2019-03-05 05:44:21 S 06 30 03.34 +31 48 34.9 L C51
2019-03-05 07:18:36 S 06 30 06.34 +31 48 30.5 L C51
2019-03-05 08:52:52 S 06 30 09.34 +31 48 26.1 L C51
2019-03-05 12:00:26 S 06 30 15.38 +31 48 18.4 L C51
2019-03-05 15:09:41 S 06 30 21.569 +31 48 08.82 L C51
2019-03-05 18:18:00 S 06 30 27.76 +31 48 00.0 L C51
2019-03-09 03:37:01 C 06 33 33.52 +31 43 25.4 V 703
2019-03-09 03:44:46 C 06 33 33.82 +31 43 25.0 V 703
2019-03-09 03:52:31 C 06 33 34.12 +31 43 24.4 V 703
2019-03-09 04:00:14 C 06 33 34.43 +31 43 23.9 V 703
2019-03-09 15:48:55 C 06 34 05.61 +31 42 39.0 q C97
2019-03-09 15:55:29 C 06 34 05.90 +31 42 38.7 q C97
2019-03-15 23:14:08 S 06 42 09.871 +31 29 36.92 L C51
2019-03-19 08:10:29 C 06 47 32.04 +31 20 12.3 V T08
2019-03-19 08:24:10 C 06 47 32.98 +31 20 10.4 V T08
2019-03-19 08:37:51 C 06 47 33.91 +31 20 08.3 V T08
2019-03-19 08:51:36 C 06 47 34.86 +31 20 06.2 V T08
2019-03-22 20:22:10 C 06 53 52.81 +31 08 10.9 q 160
2019-03-22 20:25:07 C 06 53 53.06 +31 08 10.4 q 160
2019-03-22 20:28:05 C 06 53 53.32 +31 08 09.9 q 160
2019-03-23 07:22:05 C 06 54 45.71 +31 06 31.4 V T08
2019-03-23 07:32:06 C 06 54 46.48 +31 06 29.5 V T08
2019-03-23 07:44:30 C 06 54 47.44 +31 06 27.4 V T08
2019-03-23 07:57:41 C 06 54 48.49 +31 06 25.1 V T08
2019-03-23 20:21:52 C 06 55 49.40 +31 04 19.2 q 160
2019-03-23 20:24:43 C 06 55 49.59 +31 04 18.8 q 160
2019-03-23 20:27:35 C 06 55 49.84 +31 04 18.6 q 160
2019-03-26 03:55:35 C 07 00 32.86 +30 54 37.1 V 703
2019-03-26 04:03:12 C 07 00 33.53 +30 54 36.3 V 703
2019-03-26 04:10:51 C 07 00 34.21 +30 54 35.2 V 703
2019-03-27 02:28:16 C 07 02 33.25 +30 50 20.1 q H45
2019-03-27 02:29:47 C 07 02 33.38 +30 50 19.7 q H45
2019-03-27 02:31:07 C 07 02 33.49 +30 50 19.5 q H45
2019-03-27 02:32:20 C 07 02 33.60 +30 50 19.3 q H45
2019-03-27 02:33:49 C 07 02 33.73 +30 50 19.0 q H45
2019-03-27 02:35:09 C 07 02 33.85 +30 50 18.8 q H45
2019-03-27 07:17:43 C 07 02 59.19 +30 49 26.0 V T08
2019-03-27 07:28:24 C 07 03 00.13 +30 49 23.9 V T08
2019-03-27 07:39:12 C 07 03 01.08 +30 49 21.6 V T08
2019-03-27 07:52:22 C 07 03 02.21 +30 49 18.8 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)