1997 WO21

1997WO21, 1991 RG29, 1991RG29, 26219, J91R29G, J97W21O

All data for this body: [vot]

MPC data
Name (number) 1997 WO21 (26219)
a 3.11564
e 0.18935
i / sin(i) 16.6085 / 0.28583
q 2.52568
Q 3.70560
ω 194.0205
Node 246.9109
m 348.8999
n 0.1792
Epoch 2460800.5
nobs 2674
nopp 25
Years observed 1953-2025
rms 0.70
Best values
[raw, vot]

Value Standard error
Parent Tirela (1400)
 
ap 3.122
ep 0.196
sin(ip) 0.290
G 0.150
H 13.080
Mass
D 7.65 0.200
pV 0.229 0.0306
Value
Rotational Period
Period quality None
Spectral Class Q
Spectral Class Score 5.600
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
1400 Tirela 0 Tirela Novakovic 2019EPSC...13.1671N HCM
1400 Tirela 612 Tirela 0.2000 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1216 0.1964 0.2904 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
7.65 0.200 0.200 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.229 0.0306 0.0306 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
13.08 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 0.242 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
Q K 0.800000 0.170000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC