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172884 (2005 ES256)
Classification: Main-belt Asteroid          SPK-ID: 2172884
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09930881241471257 5.983e-08  
a 2.259897820450608 2.1508e-08 au
q 2.035470051723061 1.3159e-07 au
i 6.527412343181465 6.4059e-06 deg
node 264.1719670643319 6.7657e-05 deg
peri 312.3140956067725 7.9104e-05 deg
M 142.1888246693812 4.0802e-05 deg
tp 2458510.388835766794
(2019-Jan-26.88883577)
0.00014001 TDB
period 1240.885277265736
3.40
1.7715e-05
4.85e-08
d
yr
n .2901154575653055 4.1416e-09 deg/d
Q 2.484325589178156 2.3644e-08 au
  Orbit Determination Parameters
   # obs. used (total)      235  
   data-arc span      5583 days (15.29 yr)  
   first obs. used      2003-10-23  
   last obs. used      2019-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .73349  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 08:28:35  

Additional Information
 Earth MOID = 1.03374 au 
 Jupiter MOID = 2.51411 au 
 T_jup = 3.606 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456763.5 (2014-Apr-16.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09944683892681397 5.9781e-08  
q 2.035321238518307 1.3156e-07 au
tp 2457269.065255268495
(2015-Sep-03.56525527)
0.00013978 TDB
node 264.2254378631155 6.7609e-05 deg
peri 312.4273116029916 7.9013e-05 deg
i 6.529491786497071 6.407e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      235  
   data-arc span      5583 days (15.29 yr)  
   first obs. used      2003-10-23  
   last obs. used      2019-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .73349  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 08:28:35  

Additional Information
 Jupiter MOID = 2.51411 au 
 T_jup = 3.606 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.573770398583261E-15 -7.784655451863647E-15 -2.850917105769315E-12 -9.352081405267027E-15 -8.096187740446166E-13 -2.765286472580527E-15
q -7.784655451863647E-15 1.730777217386698E-14 6.278152009725881E-12 2.249054725773521E-14 1.734075268131518E-12 6.542351930352876E-15
tp -2.850917105769315E-12 6.278152009725881E-12 1.953872364347103E-8 -2.541708148856215E-11 5.763543420431431E-9 8.757350191548758E-12
node -9.352081405267027E-15 2.249054725773521E-14 -2.541708148856215E-11 4.570961391830885E-9 -4.549197984675359E-9 1.261656291232602E-10
peri -8.096187740446166E-13 1.734075268131518E-12 5.763543420431431E-9 -4.549197984675359E-9 6.242983829722164E-9 -1.227732652030178E-10
i -2.765286472580527E-15 6.542351930352876E-15 8.757350191548758E-12 1.261656291232602E-10 -1.227732652030178E-10 4.105022199895359E-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 16.6   n/a MPO475464  

172884 (2005 ES256)          Discovered 2005-Mar-11 by LONEOS at Anderson Mesa
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

[ show close-approach data ]
Alternate Designations
 2005 ES256 = 2006 SJ133 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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