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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 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1703800482825679 3.7057e-08  
a 2.250275856952408 5.9113e-09 au
q 1.866873747795759 8.3363e-08 au
i 4.805417222513765 4.1218e-06 deg
node 306.0167845458672 4.1794e-05 deg
peri 3.826230026754512 4.3062e-05 deg
M 62.6773685500389 1.1522e-05 deg
tp 2458785.835454195799
(2019-Oct-29.33545420)
3.9188e-05 TDB
period 1232.9687457733
3.38
4.8584e-06
1.33e-08
d
yr
n .2919782040170152 1.1505e-09 deg/d
Q 2.633677966109055 6.9185e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3038  
   data-arc span      31108 days (85.17 yr)  
   first obs. used      1935-08-31  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .37466  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:19:39  

Additional Information
 Earth MOID = .852354 au 
 Jupiter MOID = 2.61752 au 
 T_jup = 3.604 
[ 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 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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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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