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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 
[ show covariance matrix ]

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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1995-Dec-21 08:39 00:01 Vesta 0.0190193632848847 0.0190169303081643 0.0190217965530927 3.69299812028824 3.69299642626396 2450072.860660626 1.31451738464443 200.457355515496 82.5679126528358 61.1928607504992 30805.5189673149 T 16 CATAB v2.0f-lin.ifort 2019-Dec-04 14:32:10 2019-Dec-04 14:32
2100-May-28 04:13 00:02 Pallas 0.0442479207453789 0.0442258941419959 0.0442699496666314 11.0728424640169 11.0728422689163 2488216.675688912 1.59370021604036 1209.01420733218 80.4940935854994 24.8084271386955 34841.9512837277 T 16 CATAB v2.0f-lin.ifort 2019-Dec-04 14:32:10 2019-Dec-04 14:32
2112-May-01 01:04 00:26 Ceres 0.0252649770607825 0.0252385245725145 0.0252914306566967 1.24687265221846 1.24685924147071 2492572.544535209 25.619223363576 1220.27108346271 65.4612607049731 8.19070269516053 8103.7617770009 T 16 CATAB v2.0f-lin.ifort 2019-Dec-04 14:32:10 2019-Dec-04 14:32
2155-Sep-25 00:27 00:02 Pallas 0.0348850065801837 0.0348546913192303 0.0349153371197948 10.9851928204365 10.9851925709976 2508424.518897998 2.48415953486695 1900.57550779525 79.8261394820034 -37.3613269460267 39711.7780536553 T 16 CATAB v2.0f-lin.ifort 2019-Dec-04 14:32:10 2019-Dec-04 14:32

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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