1999 XT231

1999XT231, 2001 NO16, 2001NO16, 49966, J99XN1T, K01N16O

All data for this body: [vot]

MPC data
Name (number) 1999 XT231 (49966)
a 2.33061
e 0.14801
i / sin(i) 7.1477 / 0.12443
q 1.98565
Q 2.67557
ω 99.7540
Node 56.9783
m 217.5408
n 0.2770
Epoch 2460200.5
nobs 1579
nopp 20
Years observed 1993-2023
rms 0.66
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.330
ep 0.193
sin(ip) 0.117
Value Standard error
G 0.150
H 15.210
Mass
D 6.33 0.055
pV 0.047 0.0044
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3302 0.1927 0.1165 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.16 1.490 1.490 Masiero 2020PSJ.....1....5M NEATM
5.69 1.900 1.900 Masiero 2012ApJ...759L...8M NEATM
5.83 1.610 1.610 Masiero 2020PSJ.....1....5M NEATM
6.33 0.055 0.055 Masiero 2011ApJ...741...68M NEATM
7.12 2.240 2.240 Masiero 2020PSJ.....1....5M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.035 0.0490 0.0490 Masiero 2020PSJ.....1....5M NEATM
0.047 0.0045 0.0045 Masiero 2011ApJ...741...68M NEATM
0.052 0.0430 0.0430 Masiero 2020PSJ.....1....5M NEATM
0.060 0.0530 0.0530 Masiero 2012ApJ...759L...8M NEATM
0.066 0.0440 0.0440 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
15.21 MPC-2023-12-04 MPC-2023-12-04 Phot