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90915 (1997 HP13)
Classification: Main-belt Asteroid          SPK-ID: 2090915
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1690127251588669 3.7298e-08  
a 2.188973469093519 7.9372e-09 au
q 1.819009097781564 7.9769e-08 au
i 3.612524277152138 4.1465e-06 deg
node 188.5552695740918 6.5974e-05 deg
peri 68.40387837368954 6.7484e-05 deg
M 139.7988730538362 1.4226e-05 deg
tp 2458937.132418017206
(2020-Mar-28.63241802)
4.6606e-05 TDB
period 1182.930347729779
3.24
6.4339e-06
1.762e-08
d
yr
n .3043289917203443 1.6552e-09 deg/d
Q 2.558937840405473 9.2787e-09 au
  Orbit Determination Parameters
   # obs. used (total)      437  
   data-arc span      8618 days (23.59 yr)  
   first obs. used      1997-04-30  
   last obs. used      2020-12-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56218  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 14:42:33  

Additional Information
 Earth MOID = .80808 au 
 Jupiter MOID = 2.49019 au 
 T_jup = 3.653 
[ 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 17.28   n/a E2021B10  

90915 (1997 HP13)          Discovered 1997-Apr-30 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1997 HP13 = 2000 EZ162 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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