1997 WJ38

1997WJ38, 1981 XP1, 1981XP1, 2000 SF209, 2000SF209, 39811, J81X01P, J97W38J, K00SK9F

All data for this body: [vot]

MPC data
Name (number) 1997 WJ38 (39811)
a 2.17103
e 0.18407
i / sin(i) 6.3972 / 0.11142
q 1.77140
Q 2.57065
ω 298.0859
Node 65.3079
m 252.3397
n 0.3081
Epoch 2460800.5
nobs 1779
nopp 21
Years observed 1981-2025
rms 0.76
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.170
ep 0.122
sin(ip) 0.090
G 0.150
H 15.610
Mass
D
pV
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 8.180
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.1698 0.1220 0.0901 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
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
15.61 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
S 0.60 Bus VIS Carvano 2010A&A...510A..43C PHOT
S 0.943 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S S 0.2203 0.2140 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
V S 0.1942 0.2140 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT