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
1971-03-24 09:42:59 A 12 30 13.42 -01 50 40.2 675
1971-03-26 07:26:30 A 12 25 28.13 -01 46 25.5 17.0 675
1971-03-26 08:22:30 A 12 25 22.00 -01 46 20.6 675
1971-03-26 09:19:29 A 12 25 16.01 -01 46 15.8 K 675
1971-03-26 11:24:39 A 12 25 02.69 -01 46 01.6 K 675
1971-03-27 08:26:59 A 12 22 47.97 -01 44 02.1 K 675
1971-03-27 09:29:59 A 12 22 41.07 -01 43 58.6 K 675
1971-03-28 07:14:59 A 12 20.34 -01 41.8 693
1971-03-28 07:57:00 A 12 20.26 -01 41.8 693
1971-03-31 05:47:10 A 12 12 30.60 -01 34 53.2 695
1971-03-31 05:58:05 A 12 12 29.37 -01 34 52.2 695
1971-04-01 07:05:00 A 12 09 38.46 -01 32 23.9 695
1971-04-01 07:15:44 A 12 09 37.25 -01 32 22.8 695
1971-04-02 09:35:59 A 12 06 36.26 -01 29 48.0 675
1971-04-16 04:53:30 A 11 28 37.12 -01 04 20.6 K 675
1971-04-20 05:36:29 A 11 18 17.21 -01 01 18.6 695
1971-04-20 05:49:35 A 11 18 15.83 -01 01 18.1 695
1971-04-21 05:52:49 A 11 15 48.09 -01 00 59.9 695
1971-04-21 06:04:29 A 11 15 46.87 -01 00 59.7 695
1971-04-24 01:08:40 A 11 09 10.38 -01 00 53.1 808
1971-04-25 01:37:45 A 11 06 51.47 -01 01 18.3 808
1971-04-29 03:20:00 A 10 58 12.83 -01 05 17.0 693
1971-04-29 03:40:00 A 10 58 11.09 -01 05 17.8 693
1971-04-30 03:15:00 A 10 56 14.74 -01 06 44.4 693
1971-04-30 03:35:00 A 10 56 13.07 -01 06 45.6 693
1971-05-26 04:14:59 A 10 25 39.72 -03 00 39.5 693
1971-05-26 04:54:59 A 10 25 38.89 -03 00 51.4 693
1971-05-29 00:27:59 A 10 24 30.44 -03 21 26.8 808
1971-10-22 11:39:00 A 10 16 37.44 +38 30 09.5 693
1971-10-22 12:13:59 A 10 16 40.02 +38 30 25.8 693
1971-11-22 10:39:00 A 10 57.22 +44 43.5 693
1971-11-22 11:28:00 A 10 57.24 +44 44.1 693
1972-01-20 07:20:59 A 09 00 30.45 +60 41 30.5 693
1972-01-20 07:54:59 A 09 00 24.02 +60 41 29.8 693
1972-03-11 04:44:10 A 07 18 43.06 +48 15 40.3 695
1972-04-17 03:35:00 A 07 46 30.62 +39 20 23.4 695
1972-04-17 04:40:09 A 07 46 33.59 +39 19 49.1 695
1973-12-24 08:37:09 A 11 28 21.90 +30 36 33.0 A 801
1973-12-31 09:46:24 A 11 26 48.48 +31 42 37.8 695
1973-12-31 10:18:09 A 11 26 47.91 +31 42 51.4 695
1974-02-18 07:34:01 A 10 10 28.69 +39 36 22.7 A 801
1974-03-22 07:04:20 A 09 13 52.22 +37 14 18.2 695
1974-03-22 07:41:59 A 09 13 50.68 +37 14 04.4 695
1975-12-30 12:30:29 A 12 09 00.90 +17 22 24.2 695
1976-03-25 07:18:33 A 10 28 35.13 +25 03 20.8 695
1976-03-25 07:47:04 A 10 28 33.12 +25 03 17.9 695
1977-01-18 00:10:16 A 22 50 10.08 +07 13 02.2 A 801
1977-02-22 00:10:56 A 01 40 16.43 +32 50 04.3 A 801
1978-03-14 07:03:46 A 12 18 31.76 +05 36 47.2 A 801
1978-04-14 05:07:28 A 11 08 52.93 +07 09 38.8 A 801
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)