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120561 (1995 EJ5)
Classification: Main-belt Asteroid          SPK-ID: 2120561
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1259121367575529 7.6203e-08  
a 3.148444388829545 3.3791e-08 au
q 2.75201702836969 2.4045e-07 au
i 9.321141278683299 9.2655e-06 deg
node 157.2073337308086 3.6309e-05 deg
peri 177.4561968390118 4.4208e-05 deg
M 29.55796555467703 2.6435e-05 deg
tp 2458832.961545487440
(2019-Dec-15.46154549)
0.00014881 TDB
period 2040.527569901638
5.59
3.285e-05
8.994e-08
d
yr
n .1764249624999448 2.8403e-09 deg/d
Q 3.544871749289401 3.8046e-08 au
  Orbit Determination Parameters
   # obs. used (total)      348  
   data-arc span      8506 days (23.29 yr)  
   first obs. used      1995-03-02  
   last obs. used      2018-06-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61155  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 04:42:46  

Additional Information
 Earth MOID = 1.74222 au 
 Jupiter MOID = 1.84453 au 
 T_jup = 3.176 
[ 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 15.1   n/a MPO439779  
diameter diameter 5.565 km 0.352 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.047   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

120561 (1995 EJ5)          Discovered 1995-Mar-02 by Spacewatch at Kitt Peak
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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