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172736 (2004 CA8)
Classification: Main-belt Asteroid          SPK-ID: 2172736
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1500063796953578 4.8227e-08  
a 2.625632792946182 1.6602e-08 au
q 2.231771123266914 1.2379e-07 au
i 8.628941088440587 4.9101e-06 deg
node 64.15959093604883 3.3599e-05 deg
peri 91.27148167234729 3.7818e-05 deg
M 289.7327857554354 1.9321e-05 deg
tp 2459303.819019986357
(2021-Mar-30.31901999)
8.4999e-05 TDB
period 1553.994254205619
4.25
1.4739e-05
4.035e-08
d
yr
n .2316610882091242 2.1972e-09 deg/d
Q 3.019494462625449 1.9092e-08 au
  Orbit Determination Parameters
   # obs. used (total)      365  
   data-arc span      7200 days (19.71 yr)  
   first obs. used      2000-03-12  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57088  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 14:32:09  

Additional Information
 Earth MOID = 1.26148 au 
 Jupiter MOID = 2.02635 au 
 T_jup = 3.370 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457472.5 (2016-Mar-25.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1496151297167103 4.8614e-08  
q 2.232415715656098 1.2476e-07 au
tp 2457752.022458358952
(2016-Dec-29.52245836)
7.7345e-05 TDB
node 64.17577814320258 3.3621e-05 deg
peri 91.72599066543488 3.7797e-05 deg
i 8.626698598806955 4.9093e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      365  
   data-arc span      7200 days (19.71 yr)  
   first obs. used      2000-03-12  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57088  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 14:32:09  

Additional Information
 Jupiter MOID = 2.02635 au 
 T_jup = 3.370 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.363350965622271E-15 -6.028893007712801E-15 1.534265252002453E-12 -9.795602285821405E-15 3.965074039003933E-13 -1.647465887975728E-15
q -6.028893007712801E-15 1.556585836113043E-14 -3.56682048132036E-12 2.67212926732578E-14 -9.483726808391015E-13 4.155915238828299E-15
tp 1.534265252002453E-12 -3.56682048132036E-12 5.982198411246601E-9 4.103125567600426E-12 1.363530407819752E-9 -3.127942529884578E-12
node -9.795602285821405E-15 2.67212926732578E-14 4.103125567600426E-12 1.130338040179015E-9 -1.116619916317418E-9 -5.511754358287897E-11
peri 3.965074039003933E-13 -9.483726808391015E-13 1.363530407819752E-9 -1.116619916317418E-9 1.428579232104015E-9 5.375826977118213E-11
i -1.647465887975728E-15 4.155915238828299E-15 -3.127942529884578E-12 -5.511754358287897E-11 5.375826977118213E-11 2.410116472129329E-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 16.3   n/a MPO454185  

172736 (2004 CA8)          Discovered 2004-Feb-10 by NEAT at Palomar
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

[ show close-approach data ]
Alternate Designations
 2004 CA8 = 2000 FO18 = 2002 TA343 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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