1999 VA154

1999VA154, 1998 UP3, 1998UP3, 28422, J98U03P, J99VF4A

All data for this body: [vot]

MPC data
Name (number) 1999 VA154 (28422)
a 2.75702
e 0.09445
i / sin(i) 9.6131 / 0.16700
q 2.49661
Q 3.01743
ω 353.6657
Node 166.8244
m 112.8768
n 0.2153
Epoch 2460800.5
nobs 2988
nopp 22
Years observed 1997-2025
rms 0.68
Best values
[raw, vot]

Value Standard error
Parent Gefion (1272)
 
ap 2.757
ep 0.137
sin(ip) 0.160
G 0.150
H 14.270
Mass
D 3.85 0.260
pV 0.249 0.0330
Value
Rotational Period 4.730
Period quality 2
Spectral Class S
Spectral Class Score 6.984
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
1272 Gefion 0 Gefion Novakovic 2019EPSC...13.1671N HCM
1272 Gefion 516 Gefion -0.5400 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7571 0.1374 0.1602 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.85 0.260 0.260 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.249 0.0330 0.0330 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
14.27 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
4.72478 2 Synodic Pal 2020ApJS..247...26P Lightcurve
4.726 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
4.733 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
L 0.522 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 0.25 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.7473 0.7330 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
V S 0.2488 0.7330 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT