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JPL Small-Body Database Browser
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172096 (2002 EP90)
Classification: Main-belt Asteroid          SPK-ID: 2172096
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2372041658309942 3.959e-08  
a 2.340334680667141 1.0958e-08 au
q 1.785197544974146 9.3612e-08 au
i 5.668071399612522 4.7546e-06 deg
node 12.46650444720618 4.5309e-05 deg
peri 297.1638822737195 4.628e-05 deg
M 277.3066041906212 1.2843e-05 deg
tp 2459300.888778750148
(2021-Mar-27.38877875)
4.7938e-05 TDB
period 1307.721847574537
3.58
9.1843e-06
2.515e-08
d
yr
n .2752878990801451 1.9334e-09 deg/d
Q 2.895471816360137 1.3557e-08 au
  Orbit Determination Parameters
   # obs. used (total)      548  
   data-arc span      21676 days (59.35 yr)  
   first obs. used      1960-09-29  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55998  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 16:43:48  

Additional Information
 Earth MOID = .779809 au 
 Jupiter MOID = 2.40554 au 
 T_jup = 3.520 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456663.5 (2014-Jan-06.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2382112807000211 3.9737e-08  
q 1.782800525803038 9.4082e-08 au
tp 2456683.602625014806
(2014-Jan-26.10262501)
3.8785e-05 TDB
node 12.51955803998681 4.5364e-05 deg
peri 296.8887092617762 4.6312e-05 deg
i 5.666694753060886 4.7515e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      548  
   data-arc span      21676 days (59.35 yr)  
   first obs. used      1960-09-29  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55998  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 16:43:48  

Additional Information
 Jupiter MOID = 2.40554 au 
 T_jup = 3.520 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.579030824155616E-15 -3.723870172650636E-15 1.138751916611845E-13 3.079281555946003E-15 2.8334653282882E-14 2.635358999814953E-16
q -3.723870172650636E-15 8.851358975507834E-15 -1.706745137253744E-13 -5.079011107422359E-15 -4.873073031238319E-14 -6.289869497408618E-16
tp 1.138751916611845E-13 -1.706745137253744E-13 1.504297455139399E-9 1.036455441776142E-11 3.808894950739383E-10 -6.729617198045594E-13
node 3.079281555946003E-15 -5.079011107422359E-15 1.036455441776142E-11 2.057881160015016E-9 -2.044640747968986E-9 -9.208094048824327E-12
peri 2.8334653282882E-14 -4.873073031238319E-14 3.808894950739383E-10 -2.044640747968986E-9 2.144804928433136E-9 9.008113476439102E-12
i 2.635358999814953E-16 -6.289869497408618E-16 -6.729617198045594E-13 -9.208094048824327E-12 9.008113476439102E-12 2.257663176125397E-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 16.0   n/a MPO433104  
diameter diameter 1.512 km 0.260 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.444   0.167 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

172096 (2002 EP90)          Discovered 2002-Mar-12 by LINEAR at Socorro
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

[ show close-approach data ]
Alternate Designations
 2002 EP90 = 2003 OU22 = 5033 P-L 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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