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
2008-05-05 05:13:51 C 10 33 59.56 +07 49 49.7 c 704
2008-05-05 05:28:39 C 10 33 59.04 +07 49 46.0 c 704
2008-05-05 05:43:27 C 10 33 58.53 +07 49 42.3 c 704
2008-05-28 04:04:46 C 10 27 56.54 +04 53 33.3 c 704
2008-05-28 04:19:07 C 10 27 56.75 +04 53 26.4 c 704
2008-05-28 04:33:29 C 10 27 56.79 +04 53 19.6 c 704
2008-05-28 04:47:52 C 10 27 56.95 +04 53 14.0 c 704
2008-06-26 09:20:02 C 10 46 13.00 -00 38 55.4 r E12
2008-06-26 09:25:37 C 10 46 13.22 -00 38 57.9 r E12
2008-06-26 09:31:13 C 10 46 13.47 -00 39 01.9 r E12
2008-06-26 09:36:46 C 10 46 13.69 -00 39 05.0 r E12
2008-07-25 09:00:30 C 11 23 39.62 -08 09 55.6 r E12
2008-07-25 09:06:14 C 11 23 40.02 -08 10 00.4 r E12
2008-07-25 09:11:59 C 11 23 40.34 -08 10 04.6 r E12
2008-07-25 09:17:45 C 11 23 40.70 -08 10 09.0 r E12
2008-11-17 17:57:45 C 12 50 24.80 +55 03 16.6 15.6 o 084
2008-11-17 17:59:57 C 12 50 24.73 +55 03 21.3 15.5 o 084
2008-11-25 18:56:12 C 12 42 13.60 +61 31 48.8 o J93
2008-11-25 18:59:15 C 12 42 13.44 +61 31 55.1 o J93
2008-11-25 19:02:17 C 12 42 13.21 +61 32 00.7 o J93
2008-12-05 02:46:28 C 12 22 56.76 +68 25 38.7 15.1 o 084
2008-12-05 02:48:41 C 12 22 56.46 +68 25 42.8 15.1 o 084
2008-12-06 06:08:26 C 12 19 15.49 +69 13 46.9 o B19
2008-12-06 06:11:13 C 12 19 15.01 +69 13 51.9 o B19
2008-12-06 06:14:57 C 12 19 14.43 +69 13 59.2 o B19
2008-12-20 03:34:24 C 10 44 59.80 +77 22 22.9 c J28
2008-12-20 03:39:12 C 10 44 57.37 +77 22 28.2 c J28
2008-12-20 03:43:20 C 10 44 55.37 +77 22 32.4 c J28
2008-12-21 05:09:32 C 10 32 18.54 +77 46 37.1 o B19
2008-12-21 05:13:29 C 10 32 16.46 +77 46 40.7 o B19
2008-12-21 05:17:09 C 10 32 14.49 +77 46 44.2 o B19
2008-12-27 04:34:00 C 09 08 11.75 +78 58 48.1 o B84
2008-12-27 05:13:36 C 09 07 46.41 +78 58 50.5 o B84
2008-12-27 22:20:15 C 08 57 05.73 +78 59 15.9 o B84
2008-12-27 23:47:22 C 08 56 10.28 +78 59 15.7 o B84
2009-01-07 18:28:41 C 06 46 52.06 +76 04 56.5 16.6 o 084
2009-01-08 00:09:50 C 06 44 57.97 +75 58 30.2 15.8 o 084
2009-01-08 00:12:03 C 06 44 57.25 +75 58 27.9 15.7 o 084
2009-01-09 22:26:24 C 06 31 15.65 +75 03 54.7 o 510
2009-01-09 23:04:06 C 06 31 05.02 +75 03 07.6 o 510
2009-01-13 17:41:55 C 06 10 42.73 +73 08 03.3 o 151
2009-01-13 17:43:11 C 06 10 42.47 +73 08 01.7 o 151
2009-01-13 17:44:26 C 06 10 42.22 +73 08 00.0 o 151
2009-01-13 17:46:58 C 06 10 41.75 +73 07 56.9 o 151
2009-01-13 17:48:14 C 06 10 41.52 +73 07 55.4 o 151
2009-01-13 17:49:29 C 06 10 41.27 +73 07 53.8 o 151
2009-01-14 14:30:09 C 06 06 59.71 +72 40 51.0 m 379
2009-01-14 14:32:49 C 06 06 59.25 +72 40 47.6 m 379
2009-01-14 14:44:49 C 06 06 57.14 +72 40 31.3 m 379
2009-01-14 14:47:29 C 06 06 56.60 +72 40 27.8 m 379
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)