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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 ]

[ 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 .1499897168081853 4.5022e-08  
a 2.625959102498144 1.2701e-08 au
q 2.232092240364571 1.1832e-07 au
i 8.628165372713688 4.0026e-06 deg
node 64.15671459526693 3.1524e-05 deg
peri 91.21392092776176 3.4247e-05 deg
M 336.1100865365433 1.3051e-05 deg
tp 2459303.643636630415
(2021-Mar-30.14363663)
5.6467e-05 TDB
period 1554.283955182515
4.26
1.1277e-05
3.087e-08
d
yr
n .2316179091984039 1.6805e-09 deg/d
Q 3.019825964631718 1.4607e-08 au
  Orbit Determination Parameters
   # obs. used (total)      468  
   data-arc span      7707 days (21.10 yr)  
   first obs. used      2000-03-12  
   last obs. used      2021-04-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53868  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:02:06  

Additional Information
 Earth MOID = 1.2616 au 
 Jupiter MOID = 2.02527 au 
 T_jup = 3.370 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457778.5 (2017-Jan-25.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1498829357421352 4.5288e-08  
q 2.232297716640547 1.1912e-07 au
tp 2457752.016985289319
(2016-Dec-29.51698529)
5.5508e-05 TDB
node 64.17003159570463 3.1539e-05 deg
peri 91.73389007473504 3.4231e-05 deg
i 8.626601689270826 4.002e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      468  
   data-arc span      7707 days (21.10 yr)  
   first obs. used      2000-03-12  
   last obs. used      2021-04-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53868  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:02:06  

Additional Information
 Jupiter MOID = 2.02527 au 
 T_jup = 3.370 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.051028648054293E-15 -5.372305908006156E-15 5.918907296444482E-13 1.41994973473092E-15 1.901026004040797E-13 -4.274508661122011E-15
q -5.372305908006156E-15 1.418850866849796E-14 -1.587291357493864E-12 -2.609245380317265E-15 -5.090891623873512E-13 1.129776206439367E-14
tp 5.918907296444482E-13 -1.587291357493864E-12 3.081119272050613E-9 2.313493021187709E-12 7.638998815420151E-10 -1.156187463659604E-12
node 1.41994973473092E-15 -2.609245380317265E-15 2.313493021187709E-12 9.946800004017605E-10 -9.827513575780911E-10 -2.42110912387909E-11
peri 1.901026004040797E-13 -5.090891623873512E-13 7.638998815420151E-10 -9.827513575780911E-10 1.171766013746937E-9 2.356065866580586E-11
i -4.274508661122011E-15 1.129776206439367E-14 -1.156187463659604E-12 -2.42110912387909E-11 2.356065866580586E-11 1.601604359635685E-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 16.39   n/a MPCxxxxx  

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

Alternate Designations
 2004 CA8 = 2000 FO18 = 2002 TA343 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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