1991 YD

1991YD, 07471, 1969 BH, 1969BH, 1994 PG20, 1994PG20, 1994 RP19, 1994RP19, J69B00H, J91Y00D, J94P20G, J94R19P

All data for this body: [vot]

MPC data
Name (number) 1991 YD (7471)
a 2.46456
e 0.15545
i / sin(i) 5.3568 / 0.09336
q 2.08144
Q 2.84769
ω 119.7073
Node 352.3915
m 218.0698
n 0.2547
Epoch 2460800.5
nobs 3535
nopp 24
Years observed 1969-2025
rms 0.62
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.462
ep 0.181
sin(ip) 0.097
G 0.150
H 14.210
Mass
D 6.26 0.098
pV 0.110 0.0082
Value
Rotational Period 19.100
Period quality 2
Spectral Class None
Spectral Class Score
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4625 0.1811 0.0974 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.68 1.290 1.290 Masiero 2021PSJ.....2..162M NEATM
5.76 1.530 1.530 Nugent 2016AJ....152...63N NEATM
6.04 0.110 0.110 Masiero 2012ApJ...759L...8M NEATM
7.17 0.220 0.220 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.086 0.0150 0.0150 Masiero 2012ApJ...759L...8M NEATM
0.090 0.2000 0.2000 Nugent 2016AJ....152...63N NEATM
0.121 0.0100 0.0100 Masiero 2012ApJ...759L...8M NEATM
0.122 0.0430 0.0670 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
14.21 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
19.15 2 Synodic Waszczak 2015AJ....150...75W Lightcurve