1999 JW8

1999JW8, 1990 WT8, 1990WT8, 53320, J90W08T, J99J08W

All data for this body: [vot]

MPC data
Name (number) 1999 JW8 (53320)
a 3.07340
e 0.13012
i / sin(i) 10.6713 / 0.18518
q 2.67349
Q 3.47332
ω 225.5508
Node 85.3641
m 223.0349
n 0.1829
Epoch 2460800.5
nobs 1581
nopp 22
Years observed 1999-2025
rms 0.76
Best values
[raw, vot]

Value Standard error
Parent Eos (221)
 
ap 3.078
ep 0.116
sin(ip) 0.165
G 0.150
H 14.280
Mass
D 4.71 0.163
pV 0.220 0.0166
Value
Rotational Period
Period quality None
Spectral Class X
Spectral Class Score 5.321
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
221 Eos 606 Eos 0.6100 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.0775 0.1164 0.1649 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.71 0.163 0.163 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.220 0.0166 0.0166 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
14.28 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
D X 0.4960 0.2910 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S X 0.2587 0.2910 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S X 0.4870 0.2910 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X X 0.3753 0.2910 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X X 0.5116 0.2910 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT