1999 VB2

1999VB2, 2000 WY8, 2000WY8, 41042, J99V02B, K00W08Y

All data for this body: [vot]

MPC data
Name (number) 1999 VB2 (41042)
a 3.17099
e 0.28287
i / sin(i) 25.3754 / 0.42855
q 2.27401
Q 4.06797
ω 78.3378
Node 87.4436
m 61.9913
n 0.1745
Epoch 2460800.5
nobs 2747
nopp 24
Years observed 1985-2025
rms 0.70
Best values
[raw, vot]

Value Standard error
Parent Euphrosyne (31)
 
ap 3.166
ep 0.248
sin(ip) 0.442
G 0.150
H 12.810
Mass
D 19.54 0.231
pV 0.050 0.0051
Value
Rotational Period 20.380
Period quality 2
Spectral Class C
Spectral Class Score 1.080
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
31 Euphrosyne 0 Euphrosyne Novakovic 2019EPSC...13.1671N HCM
31 Euphrosyne 901 Euphrosyne Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1659 0.2481 0.4420 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
13.54 3.690 3.690 Masiero 2021PSJ.....2..162M NEATM
17.79 0.474 0.474 Masiero 2011ApJ...741...68M NEATM
17.81 5.010 5.010 Masiero 2020PSJ.....1....5M NEATM
18.99 1.900 1.900 Ali-Lagoa 2018A&A...612A..85A NEATM
20.13 0.270 0.270 Usui 2011PASJ...63.1117U NEATM
20.95 2.090 2.090 Ali-Lagoa 2018A&A...612A..85A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.038 0.0080 0.0080 Ali-Lagoa 2018A&A...612A..85A NEATM
0.043 0.0530 0.0530 Masiero 2020PSJ.....1....5M NEATM
0.046 0.0090 0.0090 Ali-Lagoa 2018A&A...612A..85A NEATM
0.064 0.0250 0.0400 Masiero 2021PSJ.....2..162M NEATM
0.073 0.0101 0.0101 Masiero 2011ApJ...741...68M 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
12.81 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
20.3544 2 Sidereal Durech 2018A&A...617A..57D Model
20.3545 2 Sidereal Durech 2023A&A...675A..24D Model
20.384 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
C 0.180 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT