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120617 (1995 XE4)
Classification: Main-belt Asteroid          SPK-ID: 2120617
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 .0760449047043141 4.1135e-08  
a 2.789391453683427 1.8769e-08 au
q 2.577272446405042 1.1768e-07 au
i 5.890718556967436 4.2411e-06 deg
node 108.8846065790295 5.6376e-05 deg
peri 18.60471343726604 6.7559e-05 deg
M 36.06470184434897 3.726e-05 deg
tp 2458830.032154931918
(2019-Dec-12.53215493)
0.00017575 TDB
period 1701.620173913216
4.66
1.7175e-05
4.702e-08
d
yr
n .2115630770714877 2.1354e-09 deg/d
Q 3.001510460961812 2.0197e-08 au
  Orbit Determination Parameters
   # obs. used (total)      464  
   data-arc span      8902 days (24.37 yr)  
   first obs. used      1995-12-14  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55559  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:39:02  

Additional Information
 Earth MOID = 1.59336 au 
 Jupiter MOID = 2.03984 au 
 T_jup = 3.318 
[ 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 15.8   n/a MPO422420  
diameter diameter 3.121 km 0.287 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.104   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

120617 (1995 XE4)          Discovered 1995-Dec-14 by Spacewatch at Kitt Peak
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 1995 XE4 = 2000 YN94 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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