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
2017-04-08 11:47:28 C 12 55 42.89 -22 02 39.0 L T05
2017-04-08 12:10:58 C 12 55 39.03 -22 02 52.6 L T05
2017-04-08 12:34:18 C 12 55 35.19 -22 03 06.0 L T05
2017-04-13 23:21:08 C 12 32 49.35 -23 14 17.4 o K95
2017-04-13 23:32:42 C 12 32 47.14 -23 14 23.0 o K95
2017-04-15 09:38:05 C 12 26 18.703 -23 31 10.27 L F51
2017-04-15 09:54:25 C 12 26 15.460 -23 31 17.87 L F51
2017-04-15 10:25:00 C 12 26 09.36 -23 31 32.0 L T08
2017-04-15 10:27:06 C 12 26 08.982 -23 31 32.97 L F51
2017-04-15 10:45:32 C 12 26 05.29 -23 31 41.3 L T08
2017-04-15 11:06:44 C 12 26 01.10 -23 31 50.9 L T08
2017-04-15 11:27:23 C 12 25 57.01 -23 32 00.4 L T08
2017-04-16 10:24:47 C 12 21 28.22 -23 42 30.2 L T05
2017-04-16 10:46:31 C 12 21 23.83 -23 42 39.7 L T05
2017-04-16 11:08:12 C 12 21 19.45 -23 42 49.0 L T05
2017-04-16 11:29:08 C 12 21 15.23 -23 42 57.9 L T05
2017-04-20 04:38:53 C 12 03 05.79 -24 18 14.1 q G96
2017-04-20 04:49:03 C 12 03 03.60 -24 18 17.7 q G96
2017-04-20 04:54:34 C 12 03 02.42 -24 18 19.8 q G96
2017-04-20 05:00:04 C 12 03 01.24 -24 18 21.6 q G96
2017-04-20 05:46:26 C 12 02 51.28 -24 18 37.4 q 703
2017-04-20 05:52:47 C 12 02 49.92 -24 18 39.7 q 703
2017-04-20 05:59:05 C 12 02 48.57 -24 18 41.8 q 703
2017-04-20 06:05:24 C 12 02 47.21 -24 18 44.0 q 703
2017-04-20 10:25:29 C 12 01 52.16 -24 20 08.8 L T05
2017-04-20 10:43:28 C 12 01 48.31 -24 20 14.6 L T05
2017-04-20 11:01:31 C 12 01 44.42 -24 20 20.2 L T05
2017-04-20 11:19:37 C 12 01 40.54 -24 20 25.9 L T05
2017-04-20 11:36:59 C 12 01 36.82 -24 20 31.2 L T05
2017-04-21 00:43:54 C 11 58 51.84 -24 24 37.0 r Y00
2017-04-21 00:45:26 C 11 58 51.49 -24 24 38.0 r Y00
2017-04-21 00:47:04 C 11 58 51.18 -24 24 39.5 r Y00
2017-04-24 22:25:01 C 11 38 42.90 -24 48 30.8 r Y00
2017-04-24 22:26:36 C 11 38 42.53 -24 48 30.8 r Y00
2017-04-24 22:28:05 C 11 38 42.23 -24 48 30.6 r Y00
2017-04-28 08:46:04 C 11 20 43.38 -25 00 00.5 L T05
2017-04-28 09:08:45 C 11 20 38.32 -25 00 02.0 L T05
2017-04-28 09:30:43 C 11 20 33.41 -25 00 03.5 L T05
2017-04-28 09:53:42 C 11 20 28.29 -25 00 04.9 L T05
2017-05-04 22:31:29 C 10 47 03.93 -24 57 37.0 r Y00
2017-05-04 22:33:21 C 10 47 03.46 -24 57 36.7 r Y00
2017-05-04 22:34:55 C 10 47 03.00 -24 57 36.5 r Y00
2017-05-06 07:37:14 C 10 40 16.31 -24 54 00.7 L T05
2017-05-06 07:43:15 C 10 40 15.05 -24 53 59.8 L T05
2017-05-06 07:56:02 C 10 40 12.37 -24 53 57.7 L T05
2017-05-06 07:58:17 C 10 40 11.91 -24 53 57.6 L T05
2017-05-06 08:04:17 C 10 40 10.67 -24 53 56.7 L T05
2017-05-06 08:17:55 C 10 40 07.81 -24 53 54.3 L T05
2017-05-06 08:20:55 C 10 40 07.21 -24 53 54.3 L T05
2017-05-06 08:27:43 C 10 40 05.80 -24 53 53.2 L T05
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)