Powell

09739, 1987 SH7, 1987SH7, 1994 AS1, 1994AS1, J87S07H, J94A01S

All data for this body: [vot]

MPC data
Name (number) Powell (9739)
a 1.93962
e 0.07882
i / sin(i) 18.6753 / 0.32021
q 1.78674
Q 2.09249
ω 54.1817
Node 289.5989
m 344.4400
n 0.3649
Epoch 2460800.5
nobs 7118
nopp 21
Years observed 1987-2025
rms 0.46
Best values
[raw, vot]

Value Standard error
Parent Hungaria (434)
 
ap 1.940
ep 0.072
sin(ip) 0.373
G 0.150
H 14.080
Mass
D 2.69 0.148
pV 0.808 0.0921
Value
Rotational Period 109.000
Period quality 2
Spectral Class X
Spectral Class Score 3.530
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
434 Hungaria 3 Hungaria -0.3200 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
434 Hungaria 0 Hungaria Novakovic 2019EPSC...13.1671N HCM
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
1.9397 0.0721 0.3735 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.69 0.148 0.148 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.808 0.0921 0.0921 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
14.08 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
106.288 2 Synodic Pal 2020ApJS..247...26P Lightcurve
109.0 2 Synodic Stephens 2015MPBu...42...70S Lightcurve
16.7 2 Synodic Warner 2010MPBu...37...57W Lightcurve
18.29 2 Synodic Warner 2007MPBu...34....8W Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
C 0.07 Bus VIS Carvano 2010A&A...510A..43C PHOT
K DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
X 0.282 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
X X 0.3063 0.3063 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT