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282357 (2003 HL1)
Classification: Main-belt Asteroid          SPK-ID: 2282357
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2097260969707979 8.2095e-08  
a 2.417868512214945 2.2585e-08 au
q 1.910778386159514 1.8682e-07 au
i 3.805380109767318 1.0896e-05 deg
node 47.79432959437171 0.00013325 deg
peri 248.5482529689776 0.00013753 deg
M 133.9620635731915 3.4319e-05 deg
tp 2457089.493088392839
(2015-Mar-07.99308839)
0.00012814 JED
period 1373.243165055219
3.76
1.9241e-05
5.268e-08
d
yr
n .2621531343908229 3.673e-09 deg/d
Q 2.924958638270375 2.7321e-08 au
  Orbit Determination Parameters
   # obs. used (total)      139  
   data-arc span      6129 days (16.78 yr)  
   first obs. used      1999-03-21  
   last obs. used      2015-12-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51546  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-26 12:13:24  

Additional Information
 Earth MOID = .898605 au 
 Jupiter MOID = 2.28437 au 
 T_jup = 3.482 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.6 mag n/a MPO297473  

282357 (2003 HL1)          Discovered 2003-Apr-22 by McNaught, R. H. at Siding Spring
Reference: 20110715/Numbers.arcLast Updated: 2011-07-20

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