1990 HH1

1990HH1, 11045, 1995 SM2, 1995SM2, J90H01H, J95S02M

All data for this body: [vot]

MPC data
Name (number) 1990 HH1 (11045)
a 2.65646
e 0.17473
i / sin(i) 12.7896 / 0.22137
q 2.19230
Q 3.12061
ω 113.4489
Node 161.4754
m 354.3732
n 0.2276
Epoch 2460800.5
nobs 5248
nopp 25
Years observed 1990-2025
rms 0.54
Best values
[raw, vot]

Value Standard error
Parent Eunomia (15)
 
ap 2.656
ep 0.163
sin(ip) 0.221
G 0.150
H 13.880
Mass
D 4.93 0.235
pV 0.289 0.0697
Value
Rotational Period 3.973
Period quality 2
Spectral Class S
Spectral Class Score 11.151
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
15 Eunomia 502 Eunomia 0.1200 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6558 0.1626 0.2211 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.93 0.235 0.235 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.289 0.0697 0.0697 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
13.88 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
3.973296 2 Sidereal Durech 2018A&A...617A..57D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
AQ 0.32 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.8798 0.9230 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9787 0.9230 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT