1999 XC8

1999XC8, 1991 PP19, 1991PP19, 25451, J91P19P, J99X08C

All data for this body: [vot]

MPC data
Name (number) 1999 XC8 (25451)
a 2.34512
e 0.08699
i / sin(i) 1.5966 / 0.02786
q 2.14112
Q 2.54911
ω 302.4168
Node 107.2802
m 55.9137
n 0.2744
Epoch 2460800.5
nobs 2971
nopp 21
Years observed 1991-2025
rms 0.75
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.345
ep 0.078
sin(ip) 0.019
G 0.150
H 14.790
Mass
D 4.57 0.874
pV 0.110 0.0531
Value
Rotational Period 4.530
Period quality 2
Spectral Class None
Spectral Class Score
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3448 0.0780 0.0190 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.46 1.100 1.100 Masiero 2020PSJ.....1....5M NEATM
4.77 1.440 1.440 Masiero 2021PSJ.....2..162M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.105 0.0490 0.0930 Masiero 2021PSJ.....2..162M NEATM
0.117 0.0800 0.0800 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
14.79 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
4.53046 2 Sidereal Durech 2023A&A...675A..24D Model
4.531 2 Synodic Waszczak 2015AJ....150...75W Lightcurve