Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
17080 (1999 HE9)
Classification: Main-belt Asteroid          SPK-ID: 2017080
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1140763714147161 4.2089e-08  
a 2.991952887838024 1.6539e-08 au
q 2.650641758949681 1.2697e-07 au
i 9.892727168139098 4.5805e-06 deg
node 215.2144439754662 2.5612e-05 deg
peri 149.1812007405029 3.1885e-05 deg
M 231.852098344888 2.0208e-05 deg
tp 2459673.382992572183
(2022-Apr-03.88299257)
0.00010891 TDB
period 1890.299210500749
5.18
1.5674e-05
4.291e-08
d
yr
n .190446040499924 1.5792e-09 deg/d
Q 3.333264016726367 1.8426e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1472  
   data-arc span      14109 days (38.63 yr)  
   first obs. used      1980-09-13  
   last obs. used      2019-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52245  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 22:14:29  

Additional Information
 Earth MOID = 1.6553 au 
 Jupiter MOID = 2.16168 au 
 T_jup = 3.223 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.4   n/a MPO384901  
diameter diameter 7.185 km 0.345 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.113   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17080 (1999 HE9)          Discovered 1999-Apr-17 by LINEAR at Socorro
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 HE9 = 1980 RX6 = 1996 VD30 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Mar-30 13:45 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin