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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07592429865772904 4.0089e-08  
a 2.788817614384335 1.8335e-08 au
q 2.577078592927883 1.1395e-07 au
i 5.890725075751628 4.1555e-06 deg
node 108.8836146779768 5.5683e-05 deg
peri 18.48490498404919 6.6796e-05 deg
M 78.50784499302389 3.7194e-05 deg
tp 2458829.529691123667
(2019-Dec-12.02969112)
0.00017484 TDB
period 1701.095109760648
4.66
1.6776e-05
4.593e-08
d
yr
n .2116283786452444 2.087e-09 deg/d
Q 3.000556635840787 1.9727e-08 au
  Orbit Determination Parameters
   # obs. used (total)      476  
   data-arc span      9196 days (25.18 yr)  
   first obs. used      1995-12-14  
   last obs. used      2021-02-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55526  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:07:22  

Additional Information
 Earth MOID = 1.59309 au 
 Jupiter MOID = 2.04025 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 15.96   n/a E2021B55  
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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