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359857 (2011 UN400)
Classification: Main-belt Asteroid          SPK-ID: 2359857
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03204699757637527 7.5457e-08  
a 2.725225423837164 4.1828e-08 au
q 2.637890131284378 2.1249e-07 au
i 6.946335467536615 8.5312e-06 deg
node 47.6069432104421 6.5654e-05 deg
peri 283.1333364436387 0.00016159 deg
M 42.19609338125165 0.00014493 deg
tp 2458807.893110067135
(2019-Nov-20.39311007)
0.00066341 TDB
period 1643.244073553015
4.50
3.7832e-05
1.036e-07
d
yr
n .2190788366706898 5.0438e-09 deg/d
Q 2.81256071638995 4.3169e-08 au
  Orbit Determination Parameters
   # obs. used (total)      116  
   data-arc span      4706 days (12.88 yr)  
   first obs. used      2007-12-05  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50053  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 16:20:58  

Additional Information
 Earth MOID = 1.63833 au 
 Jupiter MOID = 2.28635 au 
 T_jup = 3.345 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457883.5 (2017-May-10.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03418550034004797 7.5452e-08  
q 2.632000798845978 2.1314e-07 au
tp 2457164.074030416290
(2015-May-21.57403042)
0.00063801 TDB
node 47.635596190173 6.5586e-05 deg
peri 283.1849852465143 0.00015316 deg
i 6.951332547952537 8.5358e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      116  
   data-arc span      4706 days (12.88 yr)  
   first obs. used      2007-12-05  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50053  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 16:20:58  

Additional Information
 Jupiter MOID = 2.28635 au 
 T_jup = 3.345 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.693075657449631E-15 -1.579225018506283E-14 3.599633662285777E-12 2.122830676529323E-14 5.954982124609838E-13 -8.851626302966769E-16
q -1.579225018506283E-14 4.542968665873469E-14 -2.198684480247984E-11 -6.039588720102356E-14 -4.145176343845064E-12 4.274819425112672E-15
tp 3.599633662285777E-12 -2.198684480247984E-11 4.070564138690866E-7 -1.074118842652453E-10 8.834074256745114E-8 1.819930260432556E-11
node 2.122830676529323E-14 -6.039588720102356E-14 -1.074118842652453E-10 4.30146454264805E-9 -4.292979994623224E-9 -4.579668951508966E-11
peri 5.954982124609838E-13 -4.145176343845064E-12 8.834074256745114E-8 -4.292979994623224E-9 2.345919790998332E-8 4.966629292035495E-11
i -8.851626302966769E-16 4.274819425112672E-15 1.819930260432556E-11 -4.579668951508966E-11 4.966629292035495E-11 7.286054302570665E-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 16.9   n/a MPO494871  

359857 (2011 UN400)          Discovered 2007-Dec-05 by Spacewatch at Kitt Peak
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

[ show close-approach data ]
Alternate Designations
 2011 UN400 = 2007 YQ40 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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