2001 XD21

2001XD21, 1995 XO3, 1995XO3, H6449, J95X03O, K01X21D

All data for this body: [vot]

MPC data
Name (number) 2001 XD21 (176449)
a 3.13025
e 0.23947
i / sin(i) 18.6718 / 0.32015
q 2.38064
Q 3.87986
ω 279.2461
Node 81.9796
m 146.8662
n 0.1780
Epoch 2460800.5
nobs 1265
nopp 19
Years observed 1995-2025
rms 0.82
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.143
ep 0.180
sin(ip) 0.315
G 0.150
H 14.400
Mass
D 7.95 0.172
pV 0.060 0.0065
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 23.983
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1426 0.1801 0.3146 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
7.22 0.226 0.226 Masiero 2011ApJ...741...68M NEATM
7.83 1.600 1.600 Masiero 2020PSJ.....1....5M NEATM
8.99 0.270 0.270 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.046 0.0140 0.0140 Masiero 2012ApJ...759L...8M NEATM
0.050 0.0400 0.0400 Masiero 2020PSJ.....1....5M NEATM
0.065 0.0075 0.0075 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
14.40 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
B C 0.0985 0.3510 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
B C 0.2528 0.3510 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
B C 0.3075 0.3510 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C C 0.0250 0.3510 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C C 0.4227 0.3510 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C C 0.4435 0.3510 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C C 0.4837 0.3510 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C C 0.5626 0.3510 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C C 0.5674 0.3510 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C C 0.6433 0.3510 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C C 0.8489 0.3510 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S C 0.0865 0.3510 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
V C 0.0195 0.3510 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X C 0.1456 0.3510 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X C 0.3279 0.3510 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X C 0.4020 0.3510 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT