Sherwoodrowland

09681, 1974 HQ, 1974HQ, 4069 P-L, 4069P-L, J74H00Q, PLS4069

All data for this body: [vot]

MPC data
Name (number) Sherwoodrowland (9681)
a 3.07937
e 0.04717
i / sin(i) 9.0688 / 0.15762
q 2.93412
Q 3.22461
ω 348.7061
Node 202.5148
m 154.4838
n 0.1824
Epoch 2460800.5
nobs 2835
nopp 28
Years observed 1952-2025
rms 0.72
Best values
[raw, vot]

Value Standard error
Parent Eos (221)
 
ap 3.082
ep 0.078
sin(ip) 0.164
G 0.150
H 13.600
Mass
D 7.34 0.426
pV 0.143 0.0302
Value
Rotational Period 0.600
Period quality
Spectral Class S
Spectral Class Score 8.916
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
221 Eos 0 Eos Novakovic 2019EPSC...13.1671N HCM
221 Eos 606 Eos 0.8400 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.0816 0.0778 0.1640 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
7.34 0.426 0.426 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.143 0.0302 0.0302 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
13.60 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
0.62 Synodic Erasmus 2018ApJS..237...19E Lightcurve
0.62 Synodic Erasmus 2019ApJS..242...15E Lightcurve
3.41971 2 Sidereal Durech 2023A&A...675A..24D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S D 0.739000 0.149000 Bus-DeMeo VIS Erasmus 2019ApJS..242...15E PHOT
S D 0.747000 0.150000 Bus-DeMeo VIS Erasmus 2018ApJS..237...19E PHOT
X X 0.5360 0.5360 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT