1991 VY4

1991VY4, 14891, 1997 GC42, 1997GC42, J91V04Y, J97G42C

All data for this body: [vot]

MPC data
Name (number) 1991 VY4 (14891)
a 2.46149
e 0.14891
i / sin(i) 3.7299 / 0.06505
q 2.09495
Q 2.82802
ω 334.1634
Node 98.3419
m 225.7790
n 0.2552
Epoch 2460800.5
nobs 3290
nopp 22
Years observed 1991-2025
rms 0.68
Best values
[raw, vot]

Value Standard error
Parent Nysa (44)
 
ap 2.461
ep 0.148
sin(ip) 0.048
G 0.150
H 14.320
Mass
D 8.03 0.093
pV 0.054 0.0050
Value
Rotational Period
Period quality None
Spectral Class B
Spectral Class Score 4.417
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
44 Nysa 405 Nysa-Polana 0.6100 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4610 0.1476 0.0477 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
6.56 1.650 1.650 Nugent 2016AJ....152...63N NEATM
8.03 0.094 0.094 Masiero 2011ApJ...741...68M NEATM
8.38 2.315 2.315 Masiero 2017AJ....154..168M NEATM
8.98 2.856 2.856 Masiero 2017AJ....154..168M NEATM
9.08 3.910 3.910 Masiero 2021PSJ.....2..162M NEATM
9.18 2.400 2.400 Masiero 2020PSJ.....1....5M NEATM
9.49 2.860 2.860 Masiero 2012ApJ...759L...8M NEATM
9.58 1.980 1.980 Masiero 2021PSJ.....2..162M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.033 0.0100 0.0150 Masiero 2021PSJ.....2..162M NEATM
0.039 0.0264 0.0264 Masiero 2017AJ....154..168M NEATM
0.044 0.0290 0.0290 Masiero 2020PSJ.....1....5M NEATM
0.044 0.0420 0.0420 Masiero 2012ApJ...759L...8M NEATM
0.044 0.0260 0.0620 Masiero 2021PSJ.....2..162M NEATM
0.045 0.0378 0.0378 Masiero 2017AJ....154..168M NEATM
0.060 0.0060 0.0060 Masiero 2011ApJ...741...68M NEATM
0.070 0.0300 0.0300 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
14.32 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 0.0812 0.4380 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
B B 0.6550 0.4380 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
CX 0.10 Bus VIS Carvano 2010A&A...510A..43C PHOT