Sihengyou

2000 QW77, 2000QW77, 25878, K00Q77W

All data for this body: [vot]

MPC data
Name (number) Sihengyou (25878)
a 2.24400
e 0.14351
i / sin(i) 3.0765 / 0.05367
q 1.92195
Q 2.56604
ω 254.4652
Node 200.5932
m 27.7080
n 0.2932
Epoch 2460800.5
nobs 1303
nopp 19
Years observed 1993-2025
rms 0.83
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.244
ep 0.172
sin(ip) 0.062
G 0.150
H 16.430
Mass
D
pV
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 15.186
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2443 0.1723 0.0617 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
16.43 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 DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 0.94 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.8961 0.9640 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9883 0.9640 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT