Tokai

02478, 1931 HH, 1931HH, 1932 SE, 1932SE, 1934 ED, 1934ED, 1939 VH, 1939VH, 1951 JP, 1951JP, 1955 OE, 1955OE, 1955 QV, 1955QV, 1957 BD, 1957BD, 1972 RS, 1972RS, 1978 NU2, 1978NU2, 1979 XR, 1979XR, 1981 JC, 1981JC, 1981 JT, 1981JT, J31H00H, J32S00E, J34E00D, J39V00H, J51J00P, J55O00E, J55Q00V, J57B00D, J72R00S, J78N02U, J79X00R, J81J00C, J81J00T

All data for this body: [vot]

MPC data
Name (number) Tokai (2478)
a 2.22566
e 0.06777
i / sin(i) 4.1425 / 0.07224
q 2.07483
Q 2.37649
ω 233.9905
Node 228.6957
m 214.3437
n 0.2968
Epoch 2460800.5
nobs 5006
nopp 35
Years observed 1932-2025
rms 0.63
Best values
[raw, vot]

Value Standard error
Parent Flora (8)
 
ap 2.226
ep 0.113
sin(ip) 0.083
G 0.150
H 12.240
Mass
D 9.93 0.030
pV 0.234 0.0241
Value
Rotational Period 25.880
Period quality 3
Spectral Class S
Spectral Class Score 26.000
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
8 Flora 402 Flora 0.4500 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2256 0.1127 0.0834 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
10.42 1.040 1.040 Ali-Lagoa 2018A&A...612A..85A NEATM
9.24 0.110 0.110 Masiero 2014ApJ...791..121M NEATM
9.71 0.490 0.490 Usui 2011PASJ...63.1117U NEATM
9.98 0.031 0.031 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.208 0.0371 0.0371 Masiero 2011ApJ...741...68M NEATM
0.250 0.0400 0.0400 Masiero 2014ApJ...791..121M NEATM
0.258 0.0520 0.0520 Ali-Lagoa 2018A&A...612A..85A 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
12.24 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
16.809 2 Synodic Erasmus 2020ApJS..247...13E Lightcurve
25.88 3 Synodic Oey LCDB Lightcurve
25.885 3 Synodic Higgins 2007CBET..824....1H Lightcurve
25.8913 3 Synodic Pravec LCDB Lightcurve
25.892 2 Sidereal Durech 2023A&A...675A..24D Model
25.9 2 Synodic Pravec LCDB Lightcurve
25.9172 2 Sidereal Durech 2018A&A...617A..57D Model
25.97 2 Synodic Oey 2016MPBu...43...45O Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S Bus VIS Bus 2002Icar..158..146B SPEC
S Tholen VIS Lazzaro 2004Icar..172..179L SPEC
S 1.000 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S 1.000000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC
S 1.000000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC
SI Bus VIS Lazzaro 2004Icar..172..179L SPEC