1999 XX256

1999XX256, A3209, J99XP6X

All data for this body: [vot]

MPC data
Name (number) 1999 XX256 (103209)
a 2.61224
e 0.11981
i / sin(i) 12.2579 / 0.21231
q 2.29927
Q 2.92521
ω 254.7959
Node 43.5428
m 130.0888
n 0.2334
Epoch 2460800.5
nobs 1533
nopp 20
Years observed 1993-2025
rms 0.71
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.611
ep 0.099
sin(ip) 0.204
G 0.150
H 15.300
Mass
D 5.27 0.043
pV 0.071 0.0064
Value
Rotational Period 132.740
Period quality 2
Spectral Class B
Spectral Class Score 0.684
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6106 0.0988 0.2041 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.78 0.142 0.142 Masiero 2011ApJ...741...68M NEATM
5.10 1.730 1.730 Masiero 2021PSJ.....2..162M NEATM
5.31 0.045 0.045 Masiero 2011ApJ...741...68M NEATM
6.07 1.630 1.630 Nugent 2016AJ....152...63N NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.040 0.0200 0.0200 Nugent 2016AJ....152...63N NEATM
0.056 0.0280 0.0560 Masiero 2021PSJ.....2..162M NEATM
0.067 0.0091 0.0091 Masiero 2011ApJ...741...68M NEATM
0.085 0.0103 0.0103 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
15.30 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
132.742 2 Synodic Pal 2020ApJS..247...26P Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
B 0.114 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
C C 0.0319 0.0319 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT