1990 QV4

1990QV4, 07577, 1987 BT2, 1987BT2, J87B02T, J90Q04V

All data for this body: [vot]

MPC data
Name (number) 1990 QV4 (7577)
a 3.04892
e 0.11277
i / sin(i) 11.1485 / 0.19335
q 2.70509
Q 3.39275
ω 281.4129
Node 125.9654
m 129.1777
n 0.1851
Epoch 2460800.5
nobs 4715
nopp 28
Years observed 1987-2025
rms 0.61
Best values
[raw, vot]

Value Standard error
Parent Eos (221)
 
ap 3.051
ep 0.084
sin(ip) 0.178
G 0.150
H 12.570
Mass
D 9.85 0.251
pV 0.210 0.0208
Value
Rotational Period
Period quality None
Spectral Class X
Spectral Class Score 4.254
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
221 Eos 606 Eos 0.6000 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.0511 0.0840 0.1776 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
11.24 1.380 1.380 Masiero 2012ApJ...759L...8M NEATM
9.80 0.255 0.255 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.153 0.0520 0.0520 Masiero 2012ApJ...759L...8M NEATM
0.221 0.0227 0.0227 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
12.57 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
Cgx Xt None None Movis NIR Popescu 2018A&A...617A..12P PHOT
X 0.709 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT