1991 FD

1991FD, 19169, J91F00D

All data for this body: [vot]

MPC data
Name (number) 1991 FD (19169)
a 2.34680
e 0.18095
i / sin(i) 24.9023 / 0.42107
q 1.92214
Q 2.77146
ω 359.4326
Node 167.5942
m 188.6393
n 0.2742
Epoch 2460800.5
nobs 3920
nopp 22
Years observed 1991-2025
rms 0.58
Best values
[raw, vot]

Value Standard error
Parent Phocaea (25)
 
ap 2.348
ep 0.230
sin(ip) 0.404
G 0.150
H 14.390
Mass
D 3.42 0.339
pV 0.284 0.0814
Value
Rotational Period
Period quality None
Spectral Class None
Spectral Class Score
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
25 Phocaea 0 Phocaea Novakovic 2019EPSC...13.1671N HCM
25 Phocaea 701 Phocaea -0.4600 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3475 0.2298 0.4037 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.30 0.420 0.420 Masiero 2011ApJ...741...68M NEATM
3.53 0.729 0.729 Masiero 2017AJ....154..168M NEATM
3.83 0.930 0.930 Nugent 2016AJ....152...63N NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.160 0.1000 0.1000 Nugent 2016AJ....152...63N NEATM
0.515 0.1934 0.1934 Masiero 2017AJ....154..168M NEATM
0.537 0.2031 0.2031 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
14.39 MPC-2023-12-04 MPC-2023-12-04 Phot