Tsai

02240, 1952 FP, 1952FP, 1966 RH, 1966RH, 1972 TV1, 1972TV1, 1978 YA, 1978YA, J52F00P, J66R00H, J72T01V, J78Y00A

All data for this body: [vot]

MPC data
Name (number) Tsai (2240)
a 3.15737
e 0.14555
i / sin(i) 0.8396 / 0.01465
q 2.69781
Q 3.61693
ω 23.8025
Node 61.1244
m 103.7814
n 0.1757
Epoch 2460800.5
nobs 5040
nopp 35
Years observed 1966-2025
rms 0.66
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.154
ep 0.146
sin(ip) 0.013
G 0.150
H 11.980
Mass
D 25.79 0.280
pV 0.040 0.0012
Value
Rotational Period 4.416
Period quality 2
Spectral Class C
Spectral Class Score 8.396
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
24 Themis 0 Themis Novakovic 2019EPSC...13.1671N HCM
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1538 0.1456 0.0134 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
24.10 2.073 2.073 Ryan&Woodward 2010AJ....140..933R IRAS-STM
24.16 2.420 2.420 Ali-Lagoa 2018A&A...612A..85A NEATM
24.39 0.469 0.469 Masiero 2011ApJ...741...68M NEATM
24.54 0.450 0.450 Usui 2011PASJ...63.1117U NEATM
24.87 2.200 2.200 Tedesco 2002AJ....123.1056T STM
28.63 2.860 2.860 Ali-Lagoa 2018A&A...612A..85A NEATM
30.97 0.631 0.631 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.035 0.0014 0.0014 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
0.040 0.0080 0.0080 Ali-Lagoa 2018A&A...612A..85A NEATM
0.054 0.0110 0.0110 Tedesco 2002AJ....123.1056T STM
0.057 0.0099 0.0099 Masiero 2011ApJ...741...68M NEATM
0.057 0.0110 0.0110 Ali-Lagoa 2018A&A...612A..85A NEATM
0.058 0.0031 0.0031 Ryan&Woodward 2010AJ....140..933R IRAS-STM
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
11.98 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
4.41563 2 Sidereal Durech 2020A&A...643A..59D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
C DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
C 0.736 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
C 0.99 Bus VIS Carvano 2010A&A...510A..43C PHOT
X X 0.7948 0.7948 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT