1999 HC2

1999HC2, 2000 WB147, 2000WB147, 35761, J99H02C, K00WE7B

All data for this body: [vot]

MPC data
Name (number) 1999 HC2 (35761)
a 2.38764
e 0.27375
i / sin(i) 8.3228 / 0.14475
q 1.73401
Q 3.04126
ω 139.7665
Node 165.4029
m 306.5609
n 0.2671
Epoch 2460800.5
nobs 2425
nopp 21
Years observed 1995-2025
rms 0.69
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.388
ep 0.237
sin(ip) 0.142
G 0.150
H 15.270
Mass
D 5.10 0.080
pV 0.039 0.0078
Value
Rotational Period
Period quality None
Spectral Class None
Spectral Class Score
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3881 0.2375 0.1421 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.64 1.040 1.040 Masiero 2020PSJ.....1....5M NEATM
4.98 0.082 0.082 Masiero 2011ApJ...741...68M NEATM
6.09 1.540 1.540 Masiero 2020PSJ.....1....5M NEATM
7.28 1.460 1.460 Ali-Lagoa 2018A&A...612A..85A NEATM
8.79 0.450 0.450 Usui 2011PASJ...63.1117U NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.025 0.0100 0.0100 Ali-Lagoa 2018A&A...612A..85A NEATM
0.048 0.0280 0.0280 Masiero 2020PSJ.....1....5M NEATM
0.063 0.0144 0.0144 Masiero 2011ApJ...741...68M NEATM
0.111 0.0840 0.0840 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
15.27 MPC-2023-12-04 MPC-2023-12-04 Phot