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JPL Small-Body Database Browser
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344858 (2004 HT12)
Classification: Main-belt Asteroid          SPK-ID: 2344858
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1038098252160741 4.674e-08  
a 3.049987500254921 4.3146e-08 au
q 2.733368830942247 1.5054e-07 au
i 10.6189896402344 5.4291e-06 deg
node 39.52738976134234 3.0089e-05 deg
peri 57.17633383797896 4.4182e-05 deg
M 38.55528871566329 2.9294e-05 deg
tp 2458392.133942286344
(2018-Sep-30.63394229)
0.0001595 TDB
period 1945.56397515556
5.33
4.1284e-05
1.13e-07
d
yr
n .1850363208802814 3.9264e-09 deg/d
Q 3.366606169567596 4.7625e-08 au
  Orbit Determination Parameters
   # obs. used (total)      255  
   data-arc span      5514 days (15.10 yr)  
   first obs. used      2004-04-21  
   last obs. used      2019-05-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51602  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:31:13  

Additional Information
 Earth MOID = 1.76722 au 
 Jupiter MOID = 1.90487 au 
 T_jup = 3.203 
[ 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 15.7   n/a MPO315019  

344858 (2004 HT12)          Discovered 2004-Apr-21 by LINEAR at Socorro
Reference: 20121128/Numbers.arcLast Updated: 2012-12-03

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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