Howardfeng

1981 UV25, 1981UV25, 1993 FT18, 1993FT18, 1998 XF63, 1998XF63, 28210, J81U25V, J93F18T, J98X63F

All data for this body: [vot]

MPC data
Name (number) Howardfeng (28210)
a 2.25319
e 0.18876
i / sin(i) 7.8090 / 0.13587
q 1.82787
Q 2.67851
ω 344.0786
Node 62.7858
m 304.6604
n 0.2914
Epoch 2460800.5
nobs 2324
nopp 21
Years observed 1981-2025
rms 0.61
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.022
ep 0.232
sin(ip) 0.118
G 0.150
H 15.750
Mass
D 2.20 0.339
pV 0.230 0.0820
Value
Rotational Period 401.600
Period quality 2
Spectral Class V
Spectral Class Score 7.007
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.0221 0.2315 0.1181 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.20 0.339 0.339 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.230 0.0820 0.0820 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
15.75 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
401.68 2 Synodic Pal 2020ApJS..247...26P Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
V 0.718 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
V V 0.4498 0.4498 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT