Orpheus

03361, 1982 HR, 1982HR, J82H00R

All data for this body: [vot]

MPC data
Name (number) Orpheus (3361)
a 1.21044
e 0.32294
i / sin(i) 2.6621 / 0.04645
q 0.81954
Q 1.60134
ω 302.3544
Node 188.6722
m 172.5489
n 0.7401
Epoch 2460800.5
nobs 2731
nopp 19
Years observed 1982-2025
rms 0.44
Best values
[raw, vot]

Value Standard error
Parent
 
ap
ep
sin(ip)
G 0.150
H 19.560
Mass
D 0.35 0.055
pV 0.357 0.1350
Value
Rotational Period 3.532
Period quality 3
Spectral Class Q
Spectral Class Score 42.000
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.35 0.055 0.055 Mainzer 2011ApJ...743..156M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.357 0.1350 0.1350 Mainzer 2011ApJ...743..156M 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
19.56 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
3.494 2 Synodic Diaz 2020MPBu...47..149D Lightcurve
3.51 2- Synodic Polishook 2012MPBu...39..187P Lightcurve
3.51 2 Synodic Troianskyi 2019MPBu...46..109T Lightcurve
3.5327 3 Synodic Skiff 2019MPBu...46..238S Lightcurve
3.5381 2 Synodic Skiff 2019MPBu...46..238S Lightcurve
3.5381 3- Synodic Pravec LCDB Lightcurve
3.5381 3- Synodic Pravec LCDB Lightcurve
3.547 3 Synodic Warner 2022MPBu...49...83W Lightcurve
3.58 2 Synodic Wisniewski 1991Icar...90..117W Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
Q Bus-DeMeo VISNIR Binzel 2019Icar..324...41B SPEC
Q Bus-DeMeo VISNIR DeMeo 2014Icar..227..112D SPEC
S 0.960000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC
S S 0.3820 0.3820 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
V Tholen VIS Hasegawa 2018PASJ...70..114H PHOT