1987 SQ4

1987SQ4, 1978 TE6, 1978TE6, 29136, J78T06E, J87S04Q

All data for this body: [vot]

MPC data
Name (number) 1987 SQ4 (29136)
a 2.77382
e 0.20710
i / sin(i) 7.1802 / 0.12499
q 2.19935
Q 3.34828
ω 150.9200
Node 195.9529
m 54.0480
n 0.2133
Epoch 2460800.5
nobs 2442
nopp 23
Years observed 1978-2025
rms 0.75
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.772
ep 0.172
sin(ip) 0.129
G 0.150
H 14.460
Mass
D 3.40 0.131
pV 0.420 0.0524
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 9.973
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7721 0.1721 0.1291 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.40 0.131 0.131 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.420 0.0524 0.0524 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
14.46 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 None Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.9955 0.9955 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT