Hirokimatsuo

08931, 1973 QQ, 1973QQ, 1977 UY1, 1977UY1, 1997 AC4, 1997AC4, J73Q00Q, J77U01Y, J97A04C

All data for this body: [vot]

MPC data
Name (number) Hirokimatsuo (8931)
a 2.36390
e 0.22689
i / sin(i) 2.2213 / 0.03876
q 1.82755
Q 2.90026
ω 330.1629
Node 341.6065
m 100.8172
n 0.2712
Epoch 2460800.5
nobs 3959
nopp 24
Years observed 1973-2025
rms 0.67
Best values
[raw, vot]

Value Standard error
Parent Nysa (44)
 
ap 2.362
ep 0.197
sin(ip) 0.046
G 0.150
H 13.770
Mass
D
pV
Value
Rotational Period 3.190
Period quality 2
Spectral Class None
Spectral Class Score
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
135 Hertha 0 Hertha Novakovic 2019EPSC...13.1671N HCM
44 Nysa 405 Nysa-Polana -1.2900 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3622 0.1968 0.0459 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
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
13.77 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
3.192 2 Synodic Erasmus 2020ApJS..247...13E Lightcurve
3.192009 2 Sidereal Durech 2020A&A...643A..59D Model
3.19203 2 Sidereal Durech 2023A&A...675A..24D Model