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160907 (2001 UJ87)
Classification: Main-belt Asteroid          SPK-ID: 2160907
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1728157668736206 3.9432e-08  
a 2.256364430977257 7.4251e-09 au
q 1.866429081491561 9.0742e-08 au
i 1.249998490685114 4.2239e-06 deg
node 230.3514524423597 0.00021911 deg
peri 2.524588755933027 0.00021955 deg
M 340.9975623580171 1.4499e-05 deg
tp 2459065.846015216984
(2020-Aug-04.34601522)
4.9945e-05 TDB
period 1237.976196598085
3.39
6.1108e-06
1.673e-08
d
yr
n .2907971905996798 1.4354e-09 deg/d
Q 2.646299780462952 8.7083e-09 au
  Orbit Determination Parameters
   # obs. used (total)      435  
   data-arc span      9869 days (27.02 yr)  
   first obs. used      1993-04-21  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56742  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 01:36:56  

Additional Information
 Earth MOID = .855443 au 
 Jupiter MOID = 2.34811 au 
 T_jup = 3.603 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456927.5 (2014-Sep-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1730356890665584 3.935e-08  
q 1.866145360406991 9.0594e-08 au
tp 2456589.525104818479
(2013-Oct-24.02510482)
4.8096e-05 TDB
node 230.4096059281045 0.00021938 deg
peri 2.469201155395135 0.00021983 deg
i 1.248961085787805 4.2219e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      435  
   data-arc span      9869 days (27.02 yr)  
   first obs. used      1993-04-21  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56742  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 01:36:56  

Additional Information
 Jupiter MOID = 2.34811 au 
 T_jup = 3.603 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.548451210229343E-15 -3.557235334516725E-15 -8.927146731974282E-13 -2.040482836918855E-14 -2.194434188268001E-13 -1.033588752703564E-16
q -3.557235334516725E-15 8.207263175649498E-15 2.021616376192685E-12 4.785893169412009E-14 4.970751367182164E-13 2.454245697383297E-16
tp -8.927146731974282E-13 2.021616376192685E-12 2.31322610369446E-9 5.591657666690953E-12 6.97258866242004E-10 5.629099783185824E-13
node -2.040482836918855E-14 4.785893169412009E-14 5.591657666690953E-12 4.812628482324654E-8 -4.811339470377064E-8 -4.312963590961775E-10
peri -2.194434188268001E-13 4.970751367182164E-13 6.97258866242004E-10 -4.811339470377064E-8 4.832337617095517E-8 4.313758725096863E-10
i -1.033588752703564E-16 2.454245697383297E-16 5.629099783185824E-13 -4.312963590961775E-10 4.313758725096863E-10 1.782459887320483E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.9   n/a MPO454066  

160907 (2001 UJ87)          Discovered 2001-Oct-18 by Spacewatch at Kitt Peak
Reference: 20070828/Numbers.arcLast Updated: 2007-08-30
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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