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295750 (2008 UN116)
Classification: Main-belt Asteroid          SPK-ID: 2295750
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09119161224820285 6.0799e-08  
a 3.139476445177745 5.3348e-08 au
q 2.85318252652673 1.8307e-07 au
i 5.580011253626646 7.8232e-06 deg
node 309.0703335072443 7.1843e-05 deg
peri 292.9858382847027 8.9764e-05 deg
M 194.6990454275168 5.8844e-05 deg
tp 2459933.447340691225
(2022-Dec-19.94734069)
0.0003449 TDB
period 2031.815505950805
5.56
5.1789e-05
1.418e-07
d
yr
n .1771814413984083 4.5161e-09 deg/d
Q 3.42577036382876 5.8213e-08 au
  Orbit Determination Parameters
   # obs. used (total)      154  
   data-arc span      9381 days (25.68 yr)  
   first obs. used      1994-03-14  
   last obs. used      2019-11-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62358  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 18:31:41  

Additional Information
 Earth MOID = 1.84632 au 
 Jupiter MOID = 1.64958 au 
 T_jup = 3.197 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457358.5 (2015-Dec-02.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09369944833589069 6.039e-08  
q 2.845042094909799 1.826e-07 au
tp 2457902.369944253979
(2017-May-28.86994425)
0.00031259 TDB
node 309.235220584784 7.1621e-05 deg
peri 292.9859568669464 8.8957e-05 deg
i 5.590343585201204 7.8359e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      154  
   data-arc span      9381 days (25.68 yr)  
   first obs. used      1994-03-14  
   last obs. used      2019-11-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62358  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 18:31:41  

Additional Information
 Jupiter MOID = 1.64958 au 
 T_jup = 3.197 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.646985184256964E-15 -1.066771111886339E-14 -5.618967040745682E-13 2.261134756735496E-14 -8.928137429196015E-14 3.63588452660372E-15
q -1.066771111886339E-14 3.334341698835804E-14 8.516886916591753E-12 -6.565689554069729E-14 1.328306889979481E-12 -8.646139727642621E-15
tp -5.618967040745682E-13 8.516886916591753E-12 9.771322827611967E-8 -1.289239182721788E-10 1.655004032614153E-8 1.944093703051376E-12
node 2.261134756735496E-14 -6.565689554069729E-14 -1.289239182721788E-10 5.129629230057271E-9 -5.126193584535069E-9 1.33447535313505E-10
peri -8.928137429196015E-14 1.328306889979481E-12 1.655004032614153E-8 -5.126193584535069E-9 7.913361753744256E-9 -1.325772405946926E-10
i 3.63588452660372E-15 -8.646139727642621E-15 1.944093703051376E-12 1.33447535313505E-10 -1.325772405946926E-10 6.140113403107286E-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 15.9   n/a MPO503287  
diameter diameter 4.414 km 0.666 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.040   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

295750 (2008 UN116)          Discovered 2008-Oct-22 by Spacewatch at Kitt Peak
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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