Twilley

05500, 1974 VU2, 1974VU2, 1981 WR, 1981WR, 1988 XV, 1988XV, J74V02U, J81W00R, J88X00V

All data for this body: [vot]

MPC data
Name (number) Twilley (5500)
a 2.28045
e 0.08836
i / sin(i) 4.3958 / 0.07665
q 2.07895
Q 2.48195
ω 341.1010
Node 112.4553
m 189.3759
n 0.2862
Epoch 2460800.5
nobs 4086
nopp 26
Years observed 1955-2025
rms 0.68
Best values
[raw, vot]

Value Standard error
Parent Flora (8)
 
ap 2.280
ep 0.116
sin(ip) 0.070
G 0.150
H 13.740
Mass
D 4.48 0.116
pV 0.350 0.0565
Value
Rotational Period 2.950
Period quality 2+
Spectral Class S
Spectral Class Score 14.565
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
8 Flora 402 Flora 0.7900 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2801 0.1164 0.0696 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.48 0.116 0.116 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.350 0.0565 0.0565 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
13.74 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
17.56 1 Synodic Behrend LCDB Lightcurve
2.955 2+ Synodic Behrend LCDB Lightcurve
2.9554 2+ Synodic Conjat 2019CBET.4706....1C Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
A S 0.7360 0.5670 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 0.908 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S 0.99 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.8561 0.5670 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT