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48569 (1994 EN)
Classification: Main-belt Asteroid          SPK-ID: 2048569
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07615620117391651 3.6874e-08  
a 3.095222794490692 2.0197e-08 au
q 2.859502384675366 1.1224e-07 au
i 10.05632019091229 4.2873e-06 deg
node 159.4692662076347 2.2175e-05 deg
peri 170.5869167916778 3.5035e-05 deg
M 110.3221421235907 2.6673e-05 deg
tp 2458390.968036621075
(2018-Sep-29.46803662)
0.00014825 TDB
period 1989.006944504305
5.45
1.9468e-05
5.33e-08
d
yr
n .1809948431777438 1.7715e-09 deg/d
Q 3.330943204306017 2.1735e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1170  
   data-arc span      10787 days (29.53 yr)  
   first obs. used      1990-06-23  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53889  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 07:32:51  

Additional Information
 Earth MOID = 1.84941 au 
 Jupiter MOID = 2.03691 au 
 T_jup = 3.196 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457155.5 (2015-May-13.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07783978705154952 3.7117e-08  
q 2.853178931702787 1.1268e-07 au
tp 2456383.710385531926
(2013-Apr-01.21038553)
0.00014748 TDB
node 159.5532155849068 2.2132e-05 deg
peri 167.3884129569673 3.4422e-05 deg
i 10.06397185326984 4.2913e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1170  
   data-arc span      10787 days (29.53 yr)  
   first obs. used      1990-06-23  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53889  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 07:32:51  

Additional Information
 Jupiter MOID = 2.03691 au 
 T_jup = 3.196 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.377641219926014E-15 -4.12845832209784E-15 5.729688750854795E-13 -6.460647254176372E-15 1.240767140225532E-13 -4.607861936454903E-16
q -4.12845832209784E-15 1.269598501752167E-14 -2.415519767231014E-12 1.968825584064611E-14 -4.704788662676264E-13 1.854481407758663E-15
tp 5.729688750854795E-13 -2.415519767231014E-12 2.175002313880452E-8 -2.37711427952576E-12 3.899794005579753E-9 -4.708013242663113E-12
node -6.460647254176372E-15 1.968825584064611E-14 -2.37711427952576E-12 4.898203287001905E-10 -4.826920564521773E-10 1.288335677546794E-11
peri 1.240767140225532E-13 -4.704788662676264E-13 3.899794005579753E-9 -4.826920564521773E-10 1.184845459871831E-9 -1.352555063129122E-11
i -4.607861936454903E-16 1.854481407758663E-15 -4.708013242663113E-12 1.288335677546794E-11 -1.352555063129122E-11 1.841534531152282E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.0   n/a MPO452832  
diameter diameter 5.049 km 2.072 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.229   0.143 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

48569 (1994 EN)          Discovered 1994-Mar-06 by Farra d'Isonzo at Farra d'Isonzo
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1994 EN = 2000 FH50 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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