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JPL Small-Body Database Browser
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347945 (2003 HM23)
Classification: Main-belt Asteroid          SPK-ID: 2347945
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1348320614755311 9.777e-08  
a 2.376414986209873 1.973e-08 au
q 2.05599805469785 2.3301e-07 au
i 1.63470778953752 1.2271e-05 deg
node 182.9159805938835 0.00020598 deg
peri 49.67866433884056 0.00020906 deg
M 215.7090334035262 3.8068e-05 deg
tp 2459536.813207885931
(2021-Nov-18.31320789)
0.00014481 TDB
period 1338.079294865945
3.66
1.6664e-05
4.562e-08
d
yr
n .2690423515118112 3.3505e-09 deg/d
Q 2.696831917721897 2.239e-08 au
  Orbit Determination Parameters
   # obs. used (total)      118  
   data-arc span      6056 days (16.58 yr)  
   first obs. used      2003-04-04  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6855  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 23:03:31  

Additional Information
 Earth MOID = 1.04554 au 
 Jupiter MOID = 2.29254 au 
 T_jup = 3.528 
[ 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 17.7   n/a MPO503394  

347945 (2003 HM23)          Discovered 2003-Apr-25 by Spacewatch at Kitt Peak
Reference: 20121228/Numbers.arcLast Updated: 2013-01-02

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