1991 YB1

1991YB1, 1999 CU82, 1999CU82, 27774, J91Y01B, J99C82U

All data for this body: [vot]

MPC data
Name (number) 1991 YB1 (27774)
a 2.27668
e 0.16775
i / sin(i) 3.2647 / 0.05695
q 1.89477
Q 2.65859
ω 87.9689
Node 327.5104
m 281.3977
n 0.2869
Epoch 2460800.5
nobs 2013
nopp 22
Years observed 1991-2025
rms 0.75
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.277
ep 0.162
sin(ip) 0.064
G 0.150
H 15.160
Mass
D 5.85 0.071
pV 0.058 0.0078
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 8.989
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2766 0.1615 0.0641 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.15 1.160 1.160 Nugent 2016AJ....152...63N NEATM
4.55 1.030 1.030 Masiero 2020PSJ.....1....5M NEATM
4.57 1.098 1.098 Masiero 2017AJ....154..168M NEATM
5.85 0.083 0.083 Masiero 2011ApJ...741...68M NEATM
5.93 0.139 0.139 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.055 0.0179 0.0179 Masiero 2011ApJ...741...68M NEATM
0.057 0.0089 0.0089 Masiero 2011ApJ...741...68M NEATM
0.085 0.0550 0.0550 Masiero 2020PSJ.....1....5M NEATM
0.090 0.0600 0.0600 Nugent 2016AJ....152...63N NEATM
0.106 0.0686 0.0686 Masiero 2017AJ....154..168M 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
15.16 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
B B 0.5730 0.4590 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
C 0.928 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
C B 0.2369 0.4590 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT