Hiroshi

04677, 1968 UF1, 1968UF1, 1976 GZ4, 1976GZ4, 1979 TX1, 1979TX1, 1979 WR, 1979WR, 1981 EF49, 1981EF49, 1990 SQ4, 1990SQ4, J68U01F, J76G04Z, J79T01X, J79W00R, J81E49F, J90S04Q

All data for this body: [vot]

MPC data
Name (number) Hiroshi (4677)
a 3.13108
e 0.19590
i / sin(i) 0.4798 / 0.00837
q 2.51770
Q 3.74445
ω 53.8075
Node 11.7550
m 39.6880
n 0.1779
Epoch 2460800.5
nobs 3673
nopp 29
Years observed 1954-2025
rms 0.72
Best values
[raw, vot]

Value Standard error
Parent Themis (24)
 
ap 3.140
ep 0.170
sin(ip) 0.023
G 0.150
H 12.900
Mass
D 14.00 0.101
pV 0.105 0.0137
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 11.448
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
24 Themis 0 Themis Novakovic 2019EPSC...13.1671N HCM
24 Themis 602 Themis 0.0700 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1400 0.1699 0.0230 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
13.94 2.790 2.790 Ali-Lagoa 2018A&A...612A..85A NEATM
13.98 0.103 0.103 Masiero 2011ApJ...741...68M NEATM
14.10 1.200 1.200 Usui 2011PASJ...63.1117U NEATM
14.85 0.598 0.598 Masiero 2011ApJ...741...68M NEATM
15.01 3.000 3.000 Ali-Lagoa 2018A&A...612A..85A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.066 0.0260 0.0260 Ali-Lagoa 2018A&A...612A..85A NEATM
0.077 0.0310 0.0310 Ali-Lagoa 2018A&A...612A..85A NEATM
0.127 0.0283 0.0283 Masiero 2011ApJ...741...68M NEATM
0.143 0.0251 0.0251 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
12.90 MPC-2023-12-04 MPC-2023-12-04 Phot
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 0.98 Bus VIS Carvano 2010A&A...510A..43C PHOT
C C None None Movis NIR Popescu 2018A&A...617A..12P PHOT
C C 0.5363 0.5400 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C C 0.5450 0.5400 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT