1991 FL4

1991FL4, 09338, 1987 SG6, 1987SG6, 1992 PY4, 1992PY4, J87S06G, J91F04L, J92P04Y

All data for this body: [vot]

MPC data
Name (number) 1991 FL4 (9338)
a 3.12253
e 0.19763
i / sin(i) 13.7381 / 0.23749
q 2.50541
Q 3.73964
ω 104.0379
Node 181.9583
m 351.9207
n 0.1786
Epoch 2460800.5
nobs 4200
nopp 27
Years observed 1987-2025
rms 0.66
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.128
ep 0.173
sin(ip) 0.247
G 0.150
H 12.530
Mass
D 19.89 1.891
pV 0.040 0.0109
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 9.242
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1283 0.1730 0.2468 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
16.85 3.450 3.450 Masiero 2021PSJ.....2..162M NEATM
19.05 5.020 5.020 Masiero 2021PSJ.....2..162M NEATM
19.50 4.610 4.610 Nugent 2016AJ....152...63N NEATM
22.70 3.030 3.030 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.035 0.0140 0.0220 Masiero 2021PSJ.....2..162M NEATM
0.040 0.0200 0.0200 Nugent 2016AJ....152...63N NEATM
0.041 0.0220 0.0220 Masiero 2012ApJ...759L...8M NEATM
0.062 0.0270 0.0490 Masiero 2021PSJ.....2..162M 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
12.53 MPC-2023-12-04 MPC-2023-12-04 Phot
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
C DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
C 0.41 Bus VIS Carvano 2010A&A...510A..43C PHOT
C 0.799 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
C C 0.2714 0.2714 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT