Icarus

01566, 1949 MA, 1949MA, J49M00A

All data for this body: [vot]

MPC data
Name (number) Icarus (1566)
a 1.07799
e 0.82700
i / sin(i) 22.8038 / 0.38758
q 0.18650
Q 1.96949
ω 31.4360
Node 87.9531
m 336.9714
n 0.8806
Epoch 2460800.5
nobs 1842
nopp 43
Years observed 1949-2025
rms 0.63
Best values
[raw, vot]

Value Standard error
Parent
 
ap
ep
sin(ip)
G 0.150
H 16.530
Mass
D 1.42 0.111
pV 0.199 0.1100
Value
Rotational Period 2.272
Period quality 3
Spectral Class Q
Spectral Class Score 47.000
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
1.42 0.123 0.123 Mainzer 2012ApJ...760L..12M NEATM
1.44 0.260 0.260 Greenberg 2017AJ....153..108G RADAR
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.199 0.1100 0.1100 Mainzer 2012ApJ...760L..12M NEATM
G data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.15 MPC-2023-12-94 MPC-2023-12-94 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
16.53 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
2.268 3 Synodic Miner 1969Icar...10..436M Lightcurve
2.27 2 Synodic Behrend LCDB Lightcurve
2.2726 3 Synodic Warner 2015MPBu...42..256W Lightcurve
2.273 3 Synodic Gehrels 1970AJ.....75..186G Lightcurve
2.27364 2 Sidereal De Angelis 1995P&SS...43..649D Model
2.2794 2+ Synodic Oey 2017MPBu...44..200O Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
Q Tholen VIS Hicks 1998Icar..133...69H SPEC
Q Binzel 2010Natur.463..331B SPEC
Q Bus-DeMeo VISNIR Binzel 2019Icar..324...41B SPEC
Q Bus-DeMeo VISNIR DeMeo 2014Icar..227..112D SPEC
S 0.950000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC
V 0.613 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT