Samuelhowell

17971, 1992 HU, 1992HU, 1997 YX20, 1997YX20, 1999 JZ50, 1999JZ50, J92H00U, J97Y20X, J99J50Z

All data for this body: [vot]

MPC data
Name (number) Samuelhowell (17971)
a 2.26940
e 0.16837
i / sin(i) 2.9404 / 0.05130
q 1.88731
Q 2.65149
ω 168.0463
Node 128.3531
m 170.3815
n 0.2883
Epoch 2460800.5
nobs 3149
nopp 23
Years observed 1992-2025
rms 0.72
Best values
[raw, vot]

Value Standard error
Parent Nysa (44)
 
ap 2.268
ep 0.139
sin(ip) 0.042
G 0.150
H 14.580
Mass
D 3.39 0.061
pV 0.184 0.0304
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 20.780
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
44 Nysa 405 Nysa-Polana -2.2300 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2685 0.1389 0.0424 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.39 0.061 0.061 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.184 0.0304 0.0304 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
14.58 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
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 0.99 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.8742 0.9310 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9303 0.9310 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9955 0.9310 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT