Alanhale

04151, 1968 HD, 1968HD, 1976 SO1, 1976SO1, 1979 FX1, 1979FX1, 1982 SZ4, 1982SZ4, 1985 HV1, 1985HV1, 1985 JX, 1985JX, J68H00D, J76S01O, J79F01X, J82S04Z, J85H01V, J85J00X

All data for this body: [vot]

MPC data
Name (number) Alanhale (4151)
a 3.14059
e 0.14949
i / sin(i) 1.0018 / 0.01748
q 2.67112
Q 3.61007
ω 76.4767
Node 66.8856
m 120.1360
n 0.1771
Epoch 2460800.5
nobs 6028
nopp 33
Years observed 1968-2025
rms 0.58
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.140
ep 0.175
sin(ip) 0.011
G 0.150
H 12.470
Mass
D 20.19 0.211
pV 0.055 0.0044
Value
Rotational Period 11.910
Period quality 1
Spectral Class C
Spectral Class Score 11.308
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1398 0.1749 0.0111 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
17.94 1.790 1.790 Ali-Lagoa 2018A&A...612A..85A NEATM
19.53 0.269 0.269 Masiero 2011ApJ...741...68M NEATM
20.35 2.040 2.040 Ali-Lagoa 2018A&A...612A..85A NEATM
20.60 nan nan Ali-Lagoa 2016A&A...591A..14A NEATM
20.60 nan nan Ali-Lagoa 2016A&A...591A..14A NEATM
20.80 0.540 0.540 Usui 2011PASJ...63.1117U NEATM
22.66 0.590 0.590 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.045 0.0060 0.0060 Masiero 2012ApJ...759L...8M NEATM
0.055 0.0110 0.0110 Ali-Lagoa 2018A&A...612A..85A NEATM
0.071 0.0140 0.0140 Ali-Lagoa 2018A&A...612A..85A NEATM
0.073 0.0099 0.0099 Masiero 2011ApJ...741...68M 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
12.47 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
11.918 1 Synodic Waszczak 2015AJ....150...75W Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
B DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
B C 0.0519 0.3760 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
B C 0.1582 0.3760 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
B C 0.7010 0.3760 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C 0.50 Bus VIS Carvano 2010A&A...510A..43C PHOT
C 0.853 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
C C 0.8650 0.3760 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT