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1370 Hella (1935 QG)
Classification: Main-belt Asteroid          SPK-ID: 2001370
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1703800337866828 3.7511e-08  
a 2.250275856058708 5.9516e-09 au
q 1.866873779674069 8.4535e-08 au
i 4.805417480194508 4.2066e-06 deg
node 306.0167857639214 4.2104e-05 deg
peri 3.826226556830728 4.3383e-05 deg
M 62.67737172395786 1.151e-05 deg
tp 2458785.835443453284
(2019-Oct-29.33544345)
3.916e-05 TDB
period 1232.968745038788
3.38
4.8915e-06
1.339e-08
d
yr
n .2919782041909544 1.1584e-09 deg/d
Q 2.633677932443347 6.9657e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2908  
   data-arc span      30785 days (84.28 yr)  
   first obs. used      1935-08-31  
   last obs. used      2019-12-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38114  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:53:07  

Additional Information
 Earth MOID = .852354 au 
 Jupiter MOID = 2.61752 au 
 T_jup = 3.604 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456367.5 (2013-Mar-16.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1702941531338403 3.7345e-08  
q 1.867076374692879 8.4166e-08 au
tp 2456318.003954996237
(2013-Jan-25.50395500)
3.7545e-05 TDB
node 306.0787508854458 4.2116e-05 deg
peri 3.457699786298804 4.3404e-05 deg
i 4.805176700333169 4.2042e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2908  
   data-arc span      30785 days (84.28 yr)  
   first obs. used      1935-08-31  
   last obs. used      2019-12-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38114  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:53:07  

Additional Information
 Jupiter MOID = 2.61752 au 
 T_jup = 3.604 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.394679380700911E-15 -3.137758822369458E-15 3.73568493659049E-13 4.367813136371764E-15 9.793103287795678E-14 -5.008857010861624E-16
q -3.137758822369458E-15 7.083952267136404E-15 -8.283224937387829E-13 -9.668454766022532E-15 -2.175941051240336E-13 1.199851122413906E-15
tp 3.73568493659049E-13 -8.283224937387829E-13 1.409600840202195E-9 9.030044323288261E-13 4.043552493375379E-10 -1.149260873277077E-13
node 4.367813136371764E-15 -9.668454766022532E-15 9.030044323288261E-13 1.773716545062238E-9 -1.766714540916645E-9 3.740904894841723E-11
peri 9.793103287795678E-14 -2.175941051240336E-13 4.043552493375379E-10 -1.766714540916645E-9 1.88391015308577E-9 -3.7318820030493E-11
i -5.008857010861624E-16 1.199851122413906E-15 -1.149260873277077E-13 3.740904894841723E-11 -3.7318820030493E-11 1.767566012070554E-11

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 13.5   n/a MPO502166  

1370 Hella (1935 QG)          Discovered 1935-Aug-31 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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