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
JPL Small-Body Database Browser
Search: [ help ]  
344125 (1999 XD9)
Classification: Main-belt Asteroid          SPK-ID: 2344125
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07120765899244168 9.0885e-08  
a 2.654303709048127 3.4936e-08 au
q 2.465296955671855 2.5371e-07 au
i 23.10210742174839 8.9388e-06 deg
node 90.93759878838995 1.9236e-05 deg
peri 307.5285204235927 5.0489e-05 deg
M 288.4544706567093 4.8613e-05 deg
tp 2459314.409419825000
(2021-Apr-09.90941982)
0.00021562 TDB
period 1579.517157456007
4.32
3.1185e-05
8.538e-08
d
yr
n .2279177521438394 4.4998e-09 deg/d
Q 2.843310462424399 3.7424e-08 au
  Orbit Determination Parameters
   # obs. used (total)      182  
   data-arc span      7172 days (19.64 yr)  
   first obs. used      1999-12-05  
   last obs. used      2019-07-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57398  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:29:15  

Additional Information
 Earth MOID = 1.52029 au 
 Jupiter MOID = 2.48064 au 
 T_jup = 3.271 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.7   n/a MPO437458  

344125 (1999 XD9)          Discovered 1999-Dec-05 by LINEAR at Socorro
Reference: 20121128/Numbers.arcLast Updated: 2012-12-03

Alternate Designations
 1999 XD9 = 2006 HQ103 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Aug-06 14:36 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin