1991 GF8

1991GF8, 13960, 1999 AF23, 1999AF23, J91G08F, J99A23F

All data for this body: [vot]

MPC data
Name (number) 1991 GF8 (13960)
a 2.77255
e 0.11995
i / sin(i) 9.0887 / 0.15796
q 2.43999
Q 3.10511
ω 107.7590
Node 7.5229
m 212.1793
n 0.2135
Epoch 2460800.5
nobs 4473
nopp 22
Years observed 1991-2025
rms 0.54
Best values
[raw, vot]

Value Standard error
Parent Gefion (1272)
 
ap 2.773
ep 0.136
sin(ip) 0.160
G 0.150
H 14.030
Mass
D
pV
Value
Rotational Period 17.210
Period quality 2
Spectral Class None
Spectral Class Score
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
1272 Gefion 0 Gefion Novakovic 2019EPSC...13.1671N HCM
1272 Gefion 516 Gefion -0.2500 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7735 0.1363 0.1598 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
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
14.03 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
17.212 2 Synodic Pal 2020ApJS..247...26P Lightcurve