1999 GF20

1999GF20, 49629, J99G20F

All data for this body: [vot]

MPC data
Name (number) 1999 GF20 (49629)
a 3.08378
e 0.08963
i / sin(i) 12.2966 / 0.21297
q 2.80737
Q 3.36018
ω 117.3593
Node 69.2370
m 309.5381
n 0.1820
Epoch 2460800.5
nobs 3292
nopp 23
Years observed 1983-2025
rms 0.66
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.077
ep 0.141
sin(ip) 0.188
G 0.150
H 13.430
Mass
D 7.40 0.108
pV 0.183 0.0139
Value
Rotational Period 14.541
Period quality 2
Spectral Class D
Spectral Class Score 0.740
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.0771 0.1408 0.1878 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
7.38 0.117 0.117 Masiero 2011ApJ...741...68M NEATM
7.48 0.279 0.279 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.182 0.0162 0.0162 Masiero 2011ApJ...741...68M NEATM
0.186 0.0274 0.0274 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
13.43 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
14.54127 2 Sidereal Durech 2018A&A...617A..57D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
D D 0.1234 0.1234 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT