1999 XQ38

1999XQ38, 1978 EY3, 1978EY3, 45076, J78E03Y, J99X38Q

All data for this body: [vot]

MPC data
Name (number) 1999 XQ38 (45076)
a 2.67689
e 0.29260
i / sin(i) 9.3909 / 0.16317
q 1.89363
Q 3.46015
ω 346.5212
Node 78.0475
m 321.0487
n 0.2250
Epoch 2460800.5
nobs 2209
nopp 22
Years observed 1978-2025
rms 0.71
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.678
ep 0.273
sin(ip) 0.133
G 0.150
H 14.070
Mass
D 7.03 0.362
pV 0.086 0.0098
Value
Rotational Period
Period quality None
Spectral Class D
Spectral Class Score 4.794
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6782 0.2729 0.1330 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.13 1.450 1.450 Masiero 2020PSJ.....1....5M NEATM
5.40 1.603 1.603 Masiero 2017AJ....154..168M NEATM
7.25 0.384 0.384 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.084 0.0099 0.0099 Masiero 2011ApJ...741...68M NEATM
0.174 0.1120 0.1120 Masiero 2020PSJ.....1....5M NEATM
0.228 0.1187 0.1187 Masiero 2017AJ....154..168M 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
14.07 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
D D 0.7990 0.7990 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT