Hironaka

06978, 1989 UP9, 1989UP9, 1990 YM1, 1990YM1, 1991 AN4, 1991AN4, 1993 RD, 1993RD, J89U09P, J90Y01M, J91A04N, J93R00D

All data for this body: [vot]

MPC data
Name (number) Hironaka (6978)
a 2.56276
e 0.17320
i / sin(i) 7.4591 / 0.12982
q 2.11888
Q 3.00665
ω 301.2070
Node 339.1386
m 313.8677
n 0.2402
Epoch 2460800.5
nobs 6574
nopp 26
Years observed 1955-2025
rms 0.54
Best values
[raw, vot]

Value Standard error
Parent Rafita (1644)
 
ap 2.562
ep 0.166
sin(ip) 0.141
G 0.150
H 13.660
Mass
D
pV
Value
Rotational Period 4.634
Period quality 2
Spectral Class None
Spectral Class Score
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
1644 Rafita 518 Rafita 0.0900 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5619 0.1663 0.1409 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
13.66 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
4.63363 2 Sidereal Durech 2023A&A...675A..24D Model