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181869 (1999 CA129)
Classification: Main-belt Asteroid          SPK-ID: 2181869
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1497792888736023 4.0857e-08  
a 2.625727619687746 1.241e-08 au
q 2.232448004035139 1.0925e-07 au
i 12.41497039620595 3.9537e-06 deg
node 57.99658292368739 2.0858e-05 deg
peri 71.42184139001944 2.9352e-05 deg
M 70.45070704636194 1.6911e-05 deg
tp 2458896.372430724416
(2020-Feb-16.87243072)
7.3439e-05 TDB
period 1554.078440506782
4.25
1.1018e-05
3.017e-08
d
yr
n .2316485388489172 1.6423e-09 deg/d
Q 3.019007235340353 1.4269e-08 au
  Orbit Determination Parameters
   # obs. used (total)      775  
   data-arc span      8042 days (22.02 yr)  
   first obs. used      1999-02-11  
   last obs. used      2021-02-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49255  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:32:23  

Additional Information
 Earth MOID = 1.28317 au 
 Jupiter MOID = 2.16868 au 
 T_jup = 3.354 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457503.5 (2016-Apr-25.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1503479077931912 4.1141e-08  
q 2.232027334373206 1.1037e-07 au
tp 2457343.936559728870
(2015-Nov-17.43655973)
7.5924e-05 TDB
node 58.01748669895718 2.0868e-05 deg
peri 71.89827575038296 2.9224e-05 deg
i 12.41144804769162 3.9524e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      775  
   data-arc span      8042 days (22.02 yr)  
   first obs. used      1999-02-11  
   last obs. used      2021-02-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49255  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:32:23  

Additional Information
 Jupiter MOID = 2.16868 au 
 T_jup = 3.354 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.692580129977652E-15 -4.519897251508272E-15 1.241378256605996E-12 1.84394997096639E-14 3.456722286547979E-13 -9.181914266683715E-15
q -4.519897251508272E-15 1.218062633077228E-14 -3.567303266962176E-12 -4.887567064921613E-14 -9.907151189604442E-13 2.515298412076375E-14
tp 1.241378256605996E-12 -3.567303266962176E-12 5.764465688770504E-9 6.680314819601918E-12 1.574987543375785E-9 -8.098800957011815E-12
node 1.84394997096639E-14 -4.887567064921613E-14 6.680314819601918E-12 4.354563871142458E-10 -4.229298653628972E-10 -1.146525372806521E-11
peri 3.456722286547979E-13 -9.907151189604442E-13 1.574987543375785E-9 -4.229298653628972E-10 8.540659259094169E-10 8.875683671686285E-12
i -9.181914266683715E-15 2.515298412076375E-14 -8.098800957011815E-12 -1.146525372806521E-11 8.875683671686285E-12 1.562159278842991E-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 15.70   n/a E2021B55  

181869 (1999 CA129)          Discovered 1999-Feb-11 by LINEAR at Socorro
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23

[ show close-approach data ]
Alternate Designations
 1999 CA129 = 2003 AV77 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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