1999 CH61

1999CH61, 2000 JQ55, 2000JQ55, 49538, J99C61H, K00J55Q

All data for this body: [vot]

MPC data
Name (number) 1999 CH61 (49538)
a 3.13795
e 0.10645
i / sin(i) 5.1938 / 0.09052
q 2.80393
Q 3.47198
ω 349.2597
Node 182.8616
m 231.9169
n 0.1773
Epoch 2460800.5
nobs 1593
nopp 21
Years observed 1999-2025
rms 0.77
Best values
[raw, vot]

Value Standard error
Parent Hygiea (10)
 
ap 3.145
ep 0.132
sin(ip) 0.090
G 0.150
H 14.350
Mass
D 7.57 0.214
pV 0.044 0.0012
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 5.928
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
10 Hygiea 0 Hygiea Novakovic 2019EPSC...13.1671N HCM
10 Hygiea 601 Hygiea Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1446 0.1317 0.0898 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
7.57 0.214 0.214 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.044 0.0012 0.0012 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
14.35 MPC-2023-12-04 MPC-2023-12-04 Phot
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
C 0.988 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
Ds Ad None None Movis NIR Popescu 2018A&A...617A..12P PHOT