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85438 (1997 EH37)
Classification: Main-belt Asteroid          SPK-ID: 2085438
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07728185595189914 4.3204e-08  
a 2.196542997761699 1.0123e-08 au
q 2.026790078216526 9.3103e-08 au
i 5.008716570505381 4.1028e-06 deg
node 115.1530111081848 6.8669e-05 deg
peri 13.65138400034386 8.1024e-05 deg
M 66.41243520890131 4.2783e-05 deg
tp 2458781.141284195389
(2019-Oct-24.64128420)
0.00014087 TDB
period 1189.071556271973
3.26
8.2197e-06
2.25e-08
d
yr
n .3027572210445325 2.0929e-09 deg/d
Q 2.366295917306871 1.0905e-08 au
  Orbit Determination Parameters
   # obs. used (total)      571  
   data-arc span      8484 days (23.23 yr)  
   first obs. used      1997-02-02  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57503  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 15:36:58  

Additional Information
 Earth MOID = 1.04221 au 
 Jupiter MOID = 2.65585 au 
 T_jup = 3.659 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457435.5 (2016-Feb-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07708590046259758 4.3527e-08  
q 2.027265262360578 9.3817e-08 au
tp 2457593.344148177551
(2016-Jul-23.84414818)
0.00013867 TDB
node 115.1862141345882 6.8668e-05 deg
peri 14.10066155790585 8.0996e-05 deg
i 5.008673244362167 4.1031e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      571  
   data-arc span      8484 days (23.23 yr)  
   first obs. used      1997-02-02  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57503  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 15:36:58  

Additional Information
 Jupiter MOID = 2.65585 au 
 T_jup = 3.659 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.894606708381897E-15 -4.064538101076254E-15 2.477307543271348E-12 -4.38384744128396E-15 8.2414423172246E-13 7.545706849164642E-16
q -4.064538101076254E-15 8.801720454266296E-15 -5.153197464613884E-12 1.016135943685066E-14 -1.724018556645918E-12 -1.389685715888775E-15
tp 2.477307543271348E-12 -5.153197464613884E-12 1.923051277325272E-8 7.037656205494176E-12 5.992597382596152E-9 7.781839510915152E-12
node -4.38384744128396E-15 1.016135943685066E-14 7.037656205494176E-12 4.715348319099572E-9 -4.694986782954266E-9 3.713137082516147E-11
peri 8.2414423172246E-13 -1.724018556645918E-12 5.992597382596152E-9 -4.694986782954266E-9 6.560322481711691E-9 -3.459417296385264E-11
i 7.545706849164642E-16 -1.389685715888775E-15 7.781839510915152E-12 3.713137082516147E-11 -3.459417296385264E-11 1.683552625168106E-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 16.2   n/a MPO351441  

85438 (1997 EH37)          Discovered 1997-Mar-05 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1997 EH37 = 2000 AN81 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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