Zu Chong-Zhi

ZuChong-Zhi, 01888, 1931 TR, 1931TR, 1941 CB, 1941CB, 1941 DD, 1941DD, 1964 VO1, 1964VO1, 1968 UU1, 1968UU1, 1972 TR4, 1972TR4, 1972 VT, 1972VT, J31T00R, J41C00B, J41D00D, J64V01O, J68U01U, J72T04R, J72V00T

All data for this body: [vot]

MPC data
Name (number) Zu Chong-Zhi (1888)
a 2.54506
e 0.16966
i / sin(i) 5.8530 / 0.10198
q 2.11327
Q 2.97685
ω 233.9132
Node 244.7212
m 268.8823
n 0.2427
Epoch 2460800.5
nobs 6287
nopp 35
Years observed 1931-2025
rms 0.57
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.547
ep 0.195
sin(ip) 0.121
G 0.150
H 11.890
Mass
D 12.38 0.060
pV 0.251 0.0317
Value
Rotational Period 11.050
Period quality 3
Spectral Class S
Spectral Class Score 23.604
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5472 0.1954 0.1214 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
11.63 0.140 0.140 Masiero 2014ApJ...791..121M NEATM
11.91 0.690 0.690 Usui 2011PASJ...63.1117U NEATM
12.48 2.500 2.500 Ali-Lagoa 2018A&A...612A..85A NEATM
12.56 0.067 0.067 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.236 0.0450 0.0450 Masiero 2011ApJ...741...68M NEATM
0.248 0.0990 0.0990 Ali-Lagoa 2018A&A...612A..85A NEATM
0.270 0.0500 0.0500 Masiero 2014ApJ...791..121M 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
11.89 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
11.05123 2 Sidereal Durech 2019A&A...631A...2D Model
11.0515 2 Sidereal Durech 2023A&A...675A..24D Model
11.053 3 Synodic Foylan 2018MPBu...45..132F Lightcurve
11.055 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
15.9 2 Synodic Behrend LCDB Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S Bus VIS Bus 2002Icar..158..146B SPEC
S 0.960000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC
S 0.992 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S S DeMeo-Carry VIS Choi 2023PSJ.....4...49C PHOT
S S 0.9754 0.9754 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT