Holleybakich

1982 SZ2, 1982SZ2, 1999 EX5, 1999EX5, 31557, J82S02Z, J99E05X

All data for this body: [vot]

MPC data
Name (number) Holleybakich (31557)
a 2.77936
e 0.14526
i / sin(i) 8.8783 / 0.15434
q 2.37563
Q 3.18310
ω 289.6892
Node 11.8171
m 120.8547
n 0.2127
Epoch 2460800.5
nobs 1690
nopp 23
Years observed 1982-2025
rms 0.76
Best values
[raw, vot]

Value Standard error
Parent Gefion (1272)
 
ap 2.776
ep 0.132
sin(ip) 0.157
G 0.150
H 14.690
Mass
D 3.29 0.556
pV 0.312 0.1537
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 9.212
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
1272 Gefion 0 Gefion Novakovic 2019EPSC...13.1671N HCM
1272 Gefion 516 Gefion -0.1300 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7763 0.1319 0.1568 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.29 0.556 0.556 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.312 0.1537 0.1537 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
14.69 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
D S 0.3145 0.5730 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 0.32 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S None None Movis NIR Popescu 2018A&A...617A..12P PHOT
S S 0.9286 0.5730 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X 0.177 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT