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305437 (2008 CA178)
Classification: Main-belt Asteroid          SPK-ID: 2305437
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2207039195062639 4.7879e-08  
a 2.69668735614604 2.5847e-08 au
q 2.101517886961624 1.2883e-07 au
i 13.55070470426725 6.2446e-06 deg
node 109.597427095645 2.8983e-05 deg
peri 337.6059546726879 3.5677e-05 deg
M 313.8255523436646 2.4541e-05 deg
tp 2459207.964375701058
(2020-Dec-24.46437570)
0.00011261 TDB
period 1617.500133585971
4.43
2.3255e-05
6.367e-08
d
yr
n .222565669408562 3.1998e-09 deg/d
Q 3.291856825330455 3.1551e-08 au
  Orbit Determination Parameters
   # obs. used (total)      227  
   data-arc span      7548 days (20.67 yr)  
   first obs. used      1998-12-24  
   last obs. used      2019-08-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53519  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:54:43  

Additional Information
 Earth MOID = 1.12413 au 
 Jupiter MOID = 1.93665 au 
 T_jup = 3.295 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457243.5 (2015-Aug-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2181591874863507 4.7454e-08  
q 2.110725305356266 1.2743e-07 au
tp 2457586.489610793601
(2016-Jul-16.98961079)
9.767e-05 TDB
node 109.7678934887748 2.9049e-05 deg
peri 337.0293622631427 3.5992e-05 deg
i 13.52435160653364 6.2367e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      227  
   data-arc span      7548 days (20.67 yr)  
   first obs. used      1998-12-24  
   last obs. used      2019-08-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53519  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:54:43  

Additional Information
 Jupiter MOID = 1.93665 au 
 T_jup = 3.295 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.251902875314598E-15 -5.968781557140701E-15 7.110590456373765E-13 -1.395659029195447E-14 2.011906992983222E-13 -4.691563425127265E-15
q -5.968781557140701E-15 1.623741091979987E-14 -5.396634621350154E-13 4.786643765806714E-14 -2.637611385987092E-13 1.592079748845831E-14
tp 7.110590456373765E-13 -5.396634621350154E-13 9.539459751062115E-9 6.023219876879753E-11 2.128836145279002E-9 1.662746022964216E-11
node -1.395659029195447E-14 4.786643765806714E-14 6.023219876879753E-11 8.438651090556592E-10 -8.06232023531636E-10 4.391280248038846E-11
peri 2.011906992983222E-13 -2.637611385987092E-13 2.128836145279002E-9 -8.06232023531636E-10 1.295435057760604E-9 -3.91536755468511E-11
i -4.691563425127265E-15 1.592079748845831E-14 1.662746022964216E-11 4.391280248038846E-11 -3.91536755468511E-11 3.889672066260964E-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 MPO455250  

305437 (2008 CA178)          Discovered 2008-Feb-06 by CSS at Catalina
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

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