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JPL Small-Body Database Browser
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344861 (2004 HP38)
Classification: Mars-crossing Asteroid          SPK-ID: 2344861
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3413762411816119 4.9458e-08  
a 2.407735137920535 7.3578e-09 au
q 1.585791566776333 1.1844e-07 au
i 6.585500270168366 5.1459e-06 deg
node 126.602162483101 6.1371e-05 deg
peri 135.5977517844893 6.2339e-05 deg
M 347.4781727192115 8.424e-06 deg
tp 2458647.965351502527
(2019-Jun-13.46535150)
3.1979e-05 TDB
period 1364.619249071263
3.74
6.2552e-06
1.713e-08
d
yr
n .2638098504363103 1.2093e-09 deg/d
Q 3.229678709064737 9.8696e-09 au
  Orbit Determination Parameters
   # obs. used (total)      302  
   data-arc span      5592 days (15.31 yr)  
   first obs. used      2004-03-18  
   last obs. used      2019-07-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56638  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:31:13  

Additional Information
 Earth MOID = .578214 au 
 Jupiter MOID = 1.88894 au 
 T_jup = 3.431 
[ 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 17.3   n/a MPO326623  

344861 (2004 HP38)          Discovered 2004-Apr-23 by CSS at Catalina
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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