2003 XS21

2003XS21, 84960, K03X21S

All data for this body: [vot]

MPC data
Name (number) 2003 XS21 (84960)
a 2.42341
e 0.06079
i / sin(i) 3.5855 / 0.06254
q 2.27609
Q 2.57073
ω 111.9098
Node 349.0812
m 238.0897
n 0.2613
Epoch 2460800.5
nobs 1390
nopp 21
Years observed 1991-2025
rms 0.73
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.424
ep 0.081
sin(ip) 0.065
G 0.150
H 15.700
Mass
D 2.29 0.363
pV 0.257 0.1450
Value
Rotational Period 7.760
Period quality 2
Spectral Class S
Spectral Class Score 11.260
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4235 0.0811 0.0650 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.29 0.363 0.363 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.257 0.1450 0.1450 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
15.70 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
7.767 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S 0.955 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S S 0.9217 0.8830 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
V S 0.3674 0.8830 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT