1990 QD8

1990QD8, 27728, J90Q08D

All data for this body: [vot]

MPC data
Name (number) 1990 QD8 (27728)
a 3.20264
e 0.13758
i / sin(i) 6.0095 / 0.10469
q 2.76202
Q 3.64325
ω 210.1789
Node 149.9548
m 0.1155
n 0.1720
Epoch 2460800.5
nobs 1846
nopp 24
Years observed 1990-2025
rms 0.78
Best values
[raw, vot]

Value Standard error
Parent Hygiea (10)
 
ap 3.191
ep 0.131
sin(ip) 0.092
G 0.150
H 13.930
Mass
D 9.58 0.177
pV 0.076 0.0111
Value
Rotational Period
Period quality None
Spectral Class B
Spectral Class Score 5.486
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
10 Hygiea 0 Hygiea Novakovic 2019EPSC...13.1671N HCM
10 Hygiea 601 Hygiea Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1906 0.1314 0.0918 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
10.30 nan nan Ali-Lagoa 2016A&A...591A..14A NEATM
8.80 nan nan Ali-Lagoa 2016A&A...591A..14A NEATM
9.63 0.306 0.306 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.076 0.0111 0.0111 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
13.93 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
C C 0.3301 0.3301 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
B DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
B 0.581 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
C 0.06 Bus VIS Carvano 2010A&A...510A..43C PHOT