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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07222166477712555 9.1118e-08  
a 2.654905064736129 3.4551e-08 au
q 2.463163401135663 2.547e-07 au
i 23.10239312662285 8.9457e-06 deg
node 90.94571805340146 1.9235e-05 deg
peri 306.8563299358074 4.9778e-05 deg
M 198.1168422504946 4.7175e-05 deg
tp 2459311.011460415262
(2021-Apr-06.51146042)
0.00021215 TDB
period 1580.053967969227
4.33
3.0845e-05
8.445e-08
d
yr
n .2278403189371386 4.4477e-09 deg/d
Q 2.846646728336594 3.7047e-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 = 1.51919 au 
 Jupiter MOID = 2.48104 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 ]
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