1991 PP9

1991PP9, 1987 SU14, 1987SU14, 1987 UK6, 1987UK6, 1998 DP35, 1998DP35, 27754, J87S14U, J87U06K, J91P09P, J98D35P

All data for this body: [vot]

MPC data
Name (number) 1991 PP9 (27754)
a 2.77949
e 0.21565
i / sin(i) 6.8181 / 0.11872
q 2.18009
Q 3.37889
ω 103.5975
Node 327.8463
m 6.3268
n 0.2127
Epoch 2460800.5
nobs 3188
nopp 21
Years observed 1987-2025
rms 0.70
Best values
[raw, vot]

Value Standard error
Parent Dora (668)
 
ap 2.781
ep 0.196
sin(ip) 0.137
G 0.150
H 13.840
Mass
D 11.59 0.297
pV 0.051 0.0066
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
668 Dora 0 Dora Novakovic 2019EPSC...13.1671N HCM
668 Dora 512 Dora Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7809 0.1964 0.1370 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
10.75 1.080 1.080 Ali-Lagoa 2018A&A...612A..85A NEATM
10.94 3.270 3.270 Masiero 2021PSJ.....2..162M NEATM
11.45 3.300 3.300 Masiero 2021PSJ.....2..162M NEATM
11.72 0.330 0.330 Usui 2011PASJ...63.1117U NEATM
11.83 1.180 1.180 Ali-Lagoa 2018A&A...612A..85A NEATM
12.31 3.806 3.806 Masiero 2017AJ....154..168M NEATM
12.71 3.120 3.120 Masiero 2012ApJ...759L...8M NEATM
8.29 2.160 2.160 Nugent 2016AJ....152...63N NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.038 0.0390 0.0390 Masiero 2012ApJ...759L...8M NEATM
0.042 0.0224 0.0224 Masiero 2017AJ....154..168M NEATM
0.042 0.0170 0.0280 Masiero 2021PSJ.....2..162M NEATM
0.049 0.0100 0.0100 Ali-Lagoa 2018A&A...612A..85A NEATM
0.049 0.0220 0.0390 Masiero 2021PSJ.....2..162M NEATM
0.059 0.0120 0.0120 Ali-Lagoa 2018A&A...612A..85A NEATM
0.070 0.0400 0.0400 Nugent 2016AJ....152...63N 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
13.84 MPC-2023-12-04 MPC-2023-12-04 Phot