Cathywong

1999 BU21, 1999BU21, 2000 FQ49, 2000FQ49, 28640, J99B21U, K00F49Q

All data for this body: [vot]

MPC data
Name (number) Cathywong (28640)
a 2.93134
e 0.10170
i / sin(i) 8.3876 / 0.14587
q 2.63322
Q 3.22946
ω 256.8407
Node 260.2872
m 40.1053
n 0.1964
Epoch 2460800.5
nobs 2168
nopp 23
Years observed 1997-2025
rms 0.69
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.930
ep 0.134
sin(ip) 0.169
G 0.150
H 13.990
Mass
D 5.04 0.165
pV 0.150 0.0141
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 5.220
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.9304 0.1344 0.1685 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.82 0.218 0.218 Masiero 2011ApJ...741...68M NEATM
5.33 0.254 0.254 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.142 0.0161 0.0161 Masiero 2011ApJ...741...68M NEATM
0.174 0.0293 0.0293 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
13.99 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 0.870 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT