1998 QU81

1998QU81, 2003 QB79, 2003QB79, G0033, J98Q81U, K03Q79B

All data for this body: [vot]

MPC data
Name (number) 1998 QU81 (160033)
a 2.76337
e 0.26219
i / sin(i) 16.1474 / 0.27811
q 2.03884
Q 3.48790
ω 142.2604
Node 228.3239
m 272.2377
n 0.2146
Epoch 2460800.5
nobs 1210
nopp 19
Years observed 1998-2025
rms 0.70
Best values
[raw, vot]

Value Standard error
Parent Postrema (1484)
 
ap 2.761
ep 0.229
sin(ip) 0.287
G 0.150
H 15.160
Mass
D 7.14 0.331
pV 0.042 0.0058
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 6.728
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
1484 Postrema 541 Postrema Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7613 0.2291 0.2866 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
6.78 2.190 2.190 Masiero 2020PSJ.....1....5M NEATM
7.15 0.335 0.335 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.042 0.0058 0.0058 Masiero 2011ApJ...741...68M NEATM
0.042 0.0470 0.0470 Masiero 2020PSJ.....1....5M 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
15.16 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
Ad Ad None None Movis NIR Popescu 2018A&A...617A..12P PHOT
C 0.931 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
C C 0.1903 0.1903 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT