1997 FK4

1997FK4, 11661, 1985 SN4, 1985SN4, 1992 DT, 1992DT, 1997 GW20, 1997GW20, J85S04N, J92D00T, J97F04K, J97G20W

All data for this body: [vot]

MPC data
Name (number) 1997 FK4 (11661)
a 2.78732
e 0.14166
i / sin(i) 8.7221 / 0.15164
q 2.39246
Q 3.18218
ω 61.6780
Node 3.4640
m 129.6432
n 0.2118
Epoch 2460800.5
nobs 3180
nopp 21
Years observed 1985-2025
rms 0.69
Best values
[raw, vot]

Value Standard error
Parent Gefion (1272)
 
ap 2.788
ep 0.123
sin(ip) 0.156
G 0.150
H 13.640
Mass
D 5.26 0.126
pV 0.212 0.0593
Value
Rotational Period 3.190
Period quality 2
Spectral Class S
Spectral Class Score 18.452
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 0.1000 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7875 0.1228 0.1562 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.26 0.126 0.126 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.212 0.0593 0.0593 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
13.64 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
3.192 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 0.62 Bus VIS Carvano 2010A&A...510A..43C PHOT
S 0.906 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S S 0.6712 0.7890 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9581 0.7890 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT