1864 Daedalus (1971 FA)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6144457497 ± 9.02e-09
Semi-major axis (a)1.4608394399 AU ± 7.41e-10
Inclination (i)22.21687740° ± 1.11e-06
Long. of Asc. Node (Ω)6.59701837° ± 1.87e-06
Arg. of Perihelion (ω)325.66177542° ± 1.90e-06
Mean Anomaly (M)257.57085481° ± 1.82e-06
Mean Motion (n)0.5582240560°/day ± 4.25e-10
Perihelion dist (q)0.56323286 AU ± 1.32e-08
Aphelion dist (Q)2.35844602 AU ± 1.32e-08
Orbital Period1.76564638 yr ± 1.34e-09
Physical Parameters
H (abs. magnitude)14.83
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.311″
Uncertainty0
Orbit TypeApollo
MOID0.269202 AU
Observations Used6128
Radar Obs Used1
Gaia Obs Used126
Oppositions20
Arc Total1971-2026
First Observation Used1971-03-24
Last Observation Used2026-04-04
Observations (7777)
Date Type RA Dec Mag Band Observatory
2011-04-08 21:40:11 C 08 35 55.76 +37 07 56.5 c A24
2011-04-08 21:43:42 C 08 35 55.77 +37 07 54.7 c A24
2011-04-08 21:53:11 C 08 35 55.79 +37 07 49.8 c A24
2011-04-09 20:17:01 C 08 36 04.47 +36 56 22.7 c A24
2011-04-09 20:18:04 C 08 36 04.46 +36 56 22.6 c A24
2011-04-09 20:19:06 C 08 36 04.45 +36 56 22.6 c A24
2011-04-10 20:41:37 C 08 36 15.69 +36 43 55.8 c A24
2011-04-10 20:58:41 C 08 36 15.85 +36 43 46.9 c A24
2011-04-10 21:09:08 C 08 36 15.92 +36 43 41.6 c A24
2011-04-10 21:23:12 C 08 36 16.05 +36 43 34.6 c A24
2011-04-10 21:33:21 C 08 36 16.15 +36 43 29.1 c A24
2011-04-10 21:50:56 C 08 36 16.30 +36 43 20.2 c A24
2011-04-30 04:38:57 C 08 45 28.54 +32 53 16.2 r 703
2011-04-30 04:49:41 C 08 45 28.87 +32 53 11.7 r 703
2011-04-30 05:00:23 C 08 45 29.16 +32 53 06.3 r 703
2011-05-01 04:46:50 C 08 46 11.82 +32 41 35.5 r G96
2011-05-01 05:00:52 C 08 46 12.25 +32 41 28.4 r G96
2011-05-01 05:14:55 C 08 46 12.68 +32 41 21.6 r G96
2011-05-01 05:29:00 C 08 46 13.08 +32 41 14.5 r G96
2012-02-20 08:03:50 C 19 20 35.38 -34 35 51.3 o I47
2012-02-20 08:10:02 C 19 20 37.15 -34 35 49.2 o I47
2012-02-20 08:22:30 C 19 20 40.77 -34 35 46.3 o I47
2012-02-20 08:27:10 C 19 20 42.17 -34 35 45.1 o I47
2012-02-20 08:30:16 C 19 20 42.98 -34 35 44.1 o I47
2012-11-25 01:14:57 C 11 34 36.64 +21 19 34.5 u D00
2012-11-25 01:29:40 C 11 34 37.23 +21 19 33.1 u D00
2012-11-25 01:44:24 C 11 34 37.84 +21 19 31.6 u D00
2012-11-25 01:57:23 C 11 34 38.33 +21 19 30.9 u D00
2012-12-03 10:31:02 C 11 41 59.13 +21 07 09.1 r 703
2012-12-03 10:38:21 C 11 41 59.35 +21 07 07.8 r 703
2012-12-03 10:46:22 C 11 41 59.53 +21 07 08.4 r 703
2012-12-03 10:53:43 C 11 41 59.78 +21 07 07.3 r 703
2013-01-05 10:11:48 C 11 54 25.05 +22 30 45.3 u 703
2013-01-05 10:23:19 C 11 54 25.09 +22 30 48.1 u 703
2013-01-05 10:34:54 C 11 54 24.98 +22 30 51.0 u 703
2013-01-05 10:46:28 C 11 54 24.91 +22 30 54.9 u 703
2013-01-18 09:09:00 C 11 49 17.97 +24 06 21.7 r 703
2013-01-18 09:17:53 C 11 49 17.79 +24 06 25.5 r 703
2013-01-18 09:26:52 C 11 49 17.50 +24 06 28.1 r 703
2013-01-18 09:35:51 C 11 49 17.25 +24 06 31.5 r 703
2013-01-21 15:51:14 C 11 46 51.753 +24 35 14.70 L F51
2013-01-21 16:04:23 C 11 46 51.290 +24 35 19.61 L F51
2013-01-26 09:56:38 C 11 42 28.62 +25 19 26.4 q H21
2013-01-26 10:01:38 C 11 42 28.40 +25 19 28.4 q H21
2013-01-26 10:06:39 C 11 42 28.17 +25 19 30.3 q H21
2013-01-26 10:11:40 C 11 42 27.95 +25 19 32.4 q H21
2013-01-27 07:43:16 C 11 41 31.52 +25 28 07.3 u H21
2013-01-27 07:51:01 C 11 41 31.16 +25 28 10.4 u H21
2013-01-27 07:58:33 C 11 41 30.84 +25 28 13.3 u H21
2013-01-27 08:05:50 C 11 41 30.54 +25 28 16.1 u H21
Radar Observations (1)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2015-11-25 18:18:00 332241055.93 4 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)