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117658 (2005 ER187)
Classification: Main-belt Asteroid          SPK-ID: 2117658
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1353287367645904 4.8591e-08  
a 2.405433725336588 1.0599e-08 au
q 2.079909417915845 1.1618e-07 au
i 3.556376231687985 5.3384e-06 deg
node 195.4944476414556 6.3707e-05 deg
peri .8151734105135573 6.5919e-05 deg
M 22.56787996098475 1.5183e-05 deg
tp 2458915.076613834521
(2020-Mar-06.57661383)
5.7461e-05 TDB
period 1362.66317761071
3.73
9.0063e-06
2.466e-08
d
yr
n .2641885433722684 1.7461e-09 deg/d
Q 2.73095803275733 1.2033e-08 au
  Orbit Determination Parameters
   # obs. used (total)      406  
   data-arc span      7007 days (19.18 yr)  
   first obs. used      2001-02-19  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58253  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:13:57  

Additional Information
 Earth MOID = 1.07838 au 
 Jupiter MOID = 2.2256 au 
 T_jup = 3.508 
[ 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 16.6   n/a MPO426742  

117658 (2005 ER187)          Discovered 2005-Mar-10 by Mt. Lemmon Survey at Mt. Lemmon
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2005 ER187 = 2002 PP67 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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