Sillanpaa

01446, 1935 GB, 1935GB, 1938 BA, 1938BA, 1952 HQ3, 1952HQ3, 1955 DQ, 1955DQ, 1965 EA, 1965EA, J35G00B, J38B00A, J52H03Q, J55D00Q, J65E00A

All data for this body: [vot]

MPC data
Name (number) Sillanpaa (1446)
a 2.24653
e 0.10068
i / sin(i) 5.2516 / 0.09153
q 2.02034
Q 2.47272
ω 196.2097
Node 17.4336
m 256.8382
n 0.2927
Epoch 2460800.5
nobs 9300
nopp 36
Years observed 1938-2025
rms 0.46
Best values
[raw, vot]

Value Standard error
Parent Flora (8)
 
ap 2.246
ep 0.136
sin(ip) 0.081
G 0.150
H 12.760
Mass
D 8.62 0.057
pV 0.214 0.0105
Value
Rotational Period 9.660
Period quality 3
Spectral Class S
Spectral Class Score 13.047
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
8 Flora 402 Flora 0.6900 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2457 0.1362 0.0813 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
7.35 0.290 0.290 Masiero 2012ApJ...759L...8M NEATM
8.17 0.150 0.150 Masiero 2014ApJ...791..121M NEATM
8.76 0.063 0.063 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.211 0.0108 0.0108 Masiero 2011ApJ...741...68M NEATM
0.240 0.0500 0.0500 Masiero 2014ApJ...791..121M NEATM
0.327 0.0800 0.0800 Masiero 2012ApJ...759L...8M 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
12.76 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
9.65855 2 Sidereal Hanus 2013A&A...559A.134H Model
9.659 3 Synodic Galad 2009MPBu...36..183G Lightcurve
9.66 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
9.6602 3 Synodic Pravec LCDB Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
LS 0.68 Bus VIS Carvano 2010A&A...510A..43C PHOT
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 1.000 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S S 0.8412 0.8412 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT