1999 HE9

1999HE9, 17080, 1980 RX6, 1980RX6, 1996 VD30, 1996VD30, J80R06X, J96V30D, J99H09E

All data for this body: [vot]

MPC data
Name (number) 1999 HE9 (17080)
a 2.99398
e 0.11217
i / sin(i) 9.9013 / 0.17195
q 2.65816
Q 3.32980
ω 148.0531
Node 215.0680
m 215.6072
n 0.1903
Epoch 2460800.5
nobs 3483
nopp 25
Years observed 1980-2025
rms 0.69
Best values
[raw, vot]

Value Standard error
Parent Eos (221)
 
ap 2.995
ep 0.077
sin(ip) 0.182
G 0.150
H 13.500
Mass
D 7.18 0.345
pV 0.113 0.0158
Value
Rotational Period 5.882
Period quality 2
Spectral Class S
Spectral Class Score 6.761
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 -0.4700 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.9951 0.0771 0.1821 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
7.18 0.345 0.345 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.113 0.0158 0.0158 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
13.50 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
5.88211 2 Synodic Pal 2020ApJS..247...26P Lightcurve
5.88428 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
LS 0.57 Bus VIS Carvano 2010A&A...510A..43C PHOT
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S S DeMeo-Carry VIS Choi 2023PSJ.....4...49C PHOT
S S 0.4602 0.4602 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT