Philbland

06580, 1981 EW21, 1981EW21, J81E21W

All data for this body: [vot]

MPC data
Name (number) Philbland (6580)
a 2.62650
e 0.12329
i / sin(i) 1.0913 / 0.01905
q 2.30269
Q 2.95031
ω 1.2600
Node 219.2264
m 97.7357
n 0.2315
Epoch 2460800.5
nobs 2312
nopp 28
Years observed 1951-2025
rms 0.76
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.627
ep 0.163
sin(ip) 0.033
G 0.150
H 14.540
Mass
D 7.43 0.097
pV 0.061 0.0089
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 0.493
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6265 0.1633 0.0332 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
6.47 1.810 1.810 Masiero 2012ApJ...759L...8M NEATM
7.43 0.097 0.097 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.061 0.0090 0.0090 Masiero 2011ApJ...741...68M NEATM
0.080 0.0730 0.0730 Masiero 2012ApJ...759L...8M 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
14.54 MPC-2023-12-04 MPC-2023-12-04 Phot
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
C C 0.0822 0.0822 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT