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
2020-04-08 08:38:33 C 09 29 27.338 +30 46 31.05 U F52
2020-04-08 08:56:29 C 09 29 26.907 +30 46 24.16 U F52
2020-04-08 09:14:24 C 09 29 26.483 +30 46 17.15 U F52
2020-04-08 09:32:22 C 09 29 26.056 +30 46 09.89 U F52
2020-04-08 23:49:40 C 09 29 07.12 +30 40 37.2 V 204
2020-04-08 23:59:35 C 09 29 06.87 +30 40 33.5 V 204
2020-04-09 07:27:43 C 09 28 57.56 +30 37 42.9 V T08
2020-04-09 07:35:31 C 09 28 57.35 +30 37 39.6 V T08
2020-04-09 07:40:15 C 09 28 57.23 +30 37 38.7 V T08
2020-04-09 07:56:15 C 09 28 56.87 +30 37 32.3 V T08
2020-04-14 09:17:05 C 09 26 55.19 +29 49 21.7 V T08
2020-04-14 09:21:45 C 09 26 55.14 +29 49 19.6 V T08
2020-04-14 09:30:24 C 09 26 55.04 +29 49 15.9 V T08
2020-04-14 09:44:28 C 09 26 54.87 +29 49 09.7 V T08
2020-04-16 05:02:30 C 09 26 26.34 +29 31 29.7 V 703
2020-04-16 05:10:40 C 09 26 26.34 +29 31 27.0 V 703
2020-04-16 05:18:53 C 09 26 26.19 +29 31 22.8 V 703
2020-04-16 05:27:04 C 09 26 26.13 +29 31 19.2 V 703
2020-04-18 04:04:46 C 09 26 03.69 +29 12 05.3 V G96
2020-04-18 04:12:22 C 09 26 03.62 +29 12 02.1 V G96
2020-04-18 04:20:00 C 09 26 03.56 +29 11 59.0 V G96
2020-04-18 04:27:38 C 09 26 03.51 +29 11 55.8 V G96
2020-04-18 08:13:50 C 09 26 01.98 +29 10 22.6 V T08
2020-04-18 08:28:26 C 09 26 01.84 +29 10 16.6 V T08
2020-04-18 08:39:40 C 09 26 01.84 +29 10 11.8 V T08
2020-04-18 08:44:53 C 09 26 01.74 +29 10 09.0 V T08
2020-04-20 07:26:51 C 09 25 48.420 +28 50 39.55 U F52
2020-04-20 07:44:45 C 09 25 48.337 +28 50 31.99 U F52
2020-04-20 08:02:41 C 09 25 48.253 +28 50 24.40 U F52
2020-04-20 08:20:36 C 09 25 48.172 +28 50 16.80 U F52
2020-04-23 04:44:17 C 09 25 43.21 +28 21 22.6 V 703
2020-04-23 04:52:27 C 09 25 43.11 +28 21 19.1 V 703
2020-04-23 05:00:39 C 09 25 43.06 +28 21 15.8 V 703
2020-04-23 05:08:50 C 09 25 43.10 +28 21 12.3 V 703
2020-04-28 06:47:40 C 09 26 13.73 +27 29 02.7 V T05
2020-04-28 06:52:16 C 09 26 13.73 +27 29 01.0 V T05
2020-04-28 07:12:28 C 09 26 13.82 +27 28 52.2 V T05
2020-04-28 07:21:49 C 09 26 13.90 +27 28 48.2 V T05
2020-04-28 12:26:15 C 09 26 16.28 +27 26 35.5 q D29
2020-04-28 12:41:42 C 09 26 16.40 +27 26 28.5 q D29
2020-04-28 12:57:10 C 09 26 16.50 +27 26 22.4 q D29
2020-04-29 03:01:38 C 09 26 23.45 +27 20 16.4 V G96
2020-04-29 03:09:44 C 09 26 23.51 +27 20 13.1 V G96
2020-04-29 03:17:52 C 09 26 23.57 +27 20 09.5 V G96
2020-04-29 03:25:59 C 09 26 23.61 +27 20 05.9 V G96
2020-04-30 06:32:16 C 09 26 38.56 +27 08 21.5 V T08
2020-04-30 06:36:56 C 09 26 38.61 +27 08 18.1 V T08
2020-04-30 06:44:40 C 09 26 38.72 +27 08 16.0 V T08
2020-04-30 07:09:46 C 09 26 38.94 +27 08 05.0 V T08
2020-05-04 05:14:02 C 09 27 47.55 +26 27 00.5 V 703
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)