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120687 (1997 CJ11)
Classification: Main-belt Asteroid          SPK-ID: 2120687
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1588206506520269 4.5627e-08  
a 2.808433516915736 1.7784e-08 au
q 2.362396278446218 1.3117e-07 au
i 9.817956441258842 4.4195e-06 deg
node 126.5375936202154 2.7262e-05 deg
peri 286.6287433836278 3.2631e-05 deg
M 83.47776721162263 1.5156e-05 deg
tp 2458801.876432398763
(2019-Nov-14.37643240)
7.2448e-05 TDB
period 1719.074301216638
4.71
1.6328e-05
4.47e-08
d
yr
n .2094150321165395 1.9891e-09 deg/d
Q 3.254470755385253 2.0608e-08 au
  Orbit Determination Parameters
   # obs. used (total)      352  
   data-arc span      8804 days (24.10 yr)  
   first obs. used      1996-12-17  
   last obs. used      2021-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53181  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 09:25:40  

Additional Information
 Earth MOID = 1.39577 au 
 Jupiter MOID = 2.14886 au 
 T_jup = 3.282 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457902.5 (2017-May-29.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1573184438131949 4.5472e-08  
q 2.367908793536559 1.3028e-07 au
tp 2457082.115677847766
(2015-Feb-28.61567785)
7.6707e-05 TDB
node 126.5881036022212 2.7277e-05 deg
peri 286.5387206299855 3.2788e-05 deg
i 9.812745831554885 4.4171e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      352  
   data-arc span      8804 days (24.10 yr)  
   first obs. used      1996-12-17  
   last obs. used      2021-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53181  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 09:25:40  

Additional Information
 Jupiter MOID = 2.14886 au 
 T_jup = 3.282 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.067695994514204E-15 -5.884980593730595E-15 -7.204845394884973E-13 -7.49922443990411E-15 -2.324107826689206E-13 -9.906841623451845E-15
q -5.884980593730595E-15 1.697357312333309E-14 1.674485201320985E-12 2.031420489362327E-14 5.977944784434464E-13 2.856359505718813E-14
tp -7.204845394884973E-13 1.674485201320985E-12 5.884032206794227E-9 7.049364003508475E-12 1.408429352080529E-9 2.432562486043657E-12
node -7.49922443990411E-15 2.031420489362327E-14 7.049364003508475E-12 7.440285916647364E-10 -7.312815600326469E-10 -6.043828012050318E-12
peri -2.324107826689206E-13 5.977944784434464E-13 1.408429352080529E-9 -7.312815600326469E-10 1.075037741474193E-9 7.00441787194451E-12
i -9.906841623451845E-15 2.856359505718813E-14 2.432562486043657E-12 -6.043828012050318E-12 7.00441787194451E-12 1.95106214659071E-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 16.12   n/a E2021B55  

120687 (1997 CJ11)          Discovered 1997-Feb-03 by Spacewatch at Kitt Peak
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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