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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2095019048509827 1.6e-07  
a 2.417963384380793 3.6831e-08 AU
q 1.911395449493088 3.7823e-07 AU
i 3.805296052548984 1.4846e-05 deg
node 47.79965967339458 0.00025515 deg
peri 248.6549202188417 0.00026168 deg
M 284.181056798334 4.6024e-05 deg
tp 2457089.733260131349
(2015-Mar-08.23326013)
0.00017622 JED
period 1373.323990685714
3.76
3.1378e-05
8.591e-08
d
yr
n .2621377056263675 5.9895e-09 deg/d
Q 2.924531319268498 4.4547e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      50  
   data-arc span      5465 days (14.96 yr)  
   first obs. used      1999-03-21  
   last obs. used      2014-03-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .37822  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Mar-22 14:20:37  

Additional Information
 Earth MOID = .898827 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 17.7 mag n/a MPO200449  

282357 (2003 HL1)          Discovered 2003-Apr-22 by McNaught, R. H. at Siding Spring (413)
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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