1971 UN

1971UN, 09513, 1990 SR, 1990SR, J71U00N, J90S00R

All data for this body: [vot]

MPC data
Name (number) 1971 UN (9513)
a 2.45380
e 0.23592
i / sin(i) 7.7147 / 0.13424
q 1.87489
Q 3.03271
ω 296.0685
Node 37.0276
m 14.7707
n 0.2564
Epoch 2460800.5
nobs 6747
nopp 27
Years observed 1948-2025
rms 0.51
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.452
ep 0.199
sin(ip) 0.128
G 0.150
H 13.740
Mass
D 9.66 0.678
pV 0.079 0.0246
Value
Rotational Period 4.109
Period quality 2
Spectral Class B
Spectral Class Score 5.544
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4524 0.1992 0.1280 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
10.09 5.120 5.120 Masiero 2012ApJ...759L...8M NEATM
10.30 2.060 2.060 Ali-Lagoa 2018A&A...612A..85A NEATM
7.63 2.180 2.180 Masiero 2020PSJ.....1....5M NEATM
8.63 2.220 2.220 Masiero 2020PSJ.....1....5M NEATM
9.98 0.820 0.820 Usui 2011PASJ...63.1117U NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.075 0.0550 0.0550 Masiero 2020PSJ.....1....5M NEATM
0.079 0.0320 0.0320 Ali-Lagoa 2018A&A...612A..85A NEATM
0.084 0.0580 0.0580 Masiero 2020PSJ.....1....5M NEATM
0.091 0.1550 0.1550 Masiero 2012ApJ...759L...8M 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
13.74 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
4.10859 2 Sidereal Durech 2023A&A...675A..24D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
B 0.924 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT