1999 GC56

1999GC56, 2002 XJ33, 2002XJ33, G2171, J99G56C, K02X33J

All data for this body: [vot]

MPC data
Name (number) 1999 GC56 (162171)
a 3.13157
e 0.13508
i / sin(i) 16.6851 / 0.28711
q 2.70858
Q 3.55457
ω 47.1385
Node 2.2796
m 14.1396
n 0.1779
Epoch 2460800.5
nobs 1188
nopp 18
Years observed 1996-2025
rms 0.78
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.134
ep 0.101
sin(ip) 0.288
G 0.150
H 14.730
Mass
D 7.62 0.482
pV 0.044 0.0153
Value
Rotational Period 4.547
Period quality 2
Spectral Class C
Spectral Class Score 3.335
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1336 0.1007 0.2880 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
7.62 0.482 0.482 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.044 0.0153 0.0153 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
14.73 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
4.54666 2 Synodic Pal 2020ApJS..247...26P Lightcurve
4.54676 2 Sidereal Durech 2023A&A...675A..24D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
C 0.23 Bus VIS Carvano 2010A&A...510A..43C PHOT
C C 0.4791 0.4791 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT