Dougwelch

1991 PJ32, 1991PJ32, 1998 SX127, 1998SX127, 28131, J91P32J, J98SC7X

All data for this body: [vot]

MPC data
Name (number) Dougwelch (28131)
a 2.22634
e 0.14759
i / sin(i) 3.0386 / 0.05301
q 1.89775
Q 2.55493
ω 343.7337
Node 104.2338
m 303.2904
n 0.2967
Epoch 2460800.5
nobs 2033
nopp 21
Years observed 1991-2025
rms 0.75
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.227
ep 0.176
sin(ip) 0.049
G 0.150
H 15.500
Mass
D 2.20 0.177
pV 0.332 0.0596
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 21.213
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2267 0.1759 0.0485 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.18 0.185 0.185 Masiero 2011ApJ...741...68M NEATM
2.50 0.596 0.596 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.281 0.0894 0.0894 Masiero 2011ApJ...741...68M NEATM
0.373 0.0800 0.0800 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
15.50 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
L S 0.5480 0.7160 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 0.60 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.4804 0.7160 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.5855 0.7160 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9423 0.7160 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9939 0.7160 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT