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160998 (2002 CA255)
Classification: Main-belt Asteroid          SPK-ID: 2160998
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .118271204840475 5.6651e-08  
a 2.290272270865165 1.2732e-08 au
q 2.019399009977211 1.3165e-07 au
i 4.992697428510454 5.8513e-06 deg
node 209.8754175719464 6.2237e-05 deg
peri .1766236248974322 6.6186e-05 deg
M 48.58567370774023 2.4422e-05 deg
tp 2458829.642193016629
(2019-Dec-12.14219302)
8.5439e-05 TDB
period 1265.986572173736
3.47
1.0557e-05
2.89e-08
d
yr
n .2843632056711861 2.3713e-09 deg/d
Q 2.561145531753119 1.4238e-08 au
  Orbit Determination Parameters
   # obs. used (total)      377  
   data-arc span      17476 days (47.85 yr)  
   first obs. used      1971-03-24  
   last obs. used      2019-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56917  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 11:12:14  

Additional Information
 Earth MOID = 1.01394 au 
 Jupiter MOID = 2.40221 au 
 T_jup = 3.585 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456830.5 (2014-Jun-22.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1184533727222175 5.6522e-08  
q 2.018369705769469 1.3142e-07 au
tp 2456298.367291969859
(2013-Jan-05.86729197)
8.1267e-05 TDB
node 209.9210893288471 6.2269e-05 deg
peri .07180285966340597 6.6221e-05 deg
i 4.991549526542348 5.8507e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      377  
   data-arc span      17476 days (47.85 yr)  
   first obs. used      1971-03-24  
   last obs. used      2019-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56917  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 11:12:14  

Additional Information
 Jupiter MOID = 2.40221 au 
 T_jup = 3.585 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.194754293288032E-15 -7.401211000580983E-15 -2.117561505959151E-12 -1.246409458141401E-14 -5.658689466977222E-13 -3.076551367386492E-15
q -7.401211000580983E-15 1.727220596401772E-14 4.90826724346306E-12 2.761022918725975E-14 1.323707350240571E-12 7.119598563539187E-15
tp -2.117561505959151E-12 4.90826724346306E-12 6.604247599328754E-9 2.517208321628584E-11 1.85899816934327E-9 1.62665751214723E-12
node -1.246409458141401E-14 2.761022918725975E-14 2.517208321628584E-11 3.877474421238974E-9 -3.854914657496327E-9 -1.45232389674844E-10
peri -5.658689466977222E-13 1.323707350240571E-12 1.85899816934327E-9 -3.854914657496327E-9 4.385235311919981E-9 1.451912794149453E-10
i -3.076551367386492E-15 7.119598563539187E-15 1.62665751214723E-12 -1.45232389674844E-10 1.451912794149453E-10 3.423025904487014E-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 16.7   n/a MPO417856  

160998 (2002 CA255)          Discovered 2002-Feb-06 by Goodricke-Pigott at Goodricke-Pigott
Reference: 20070828/Numbers.arcLast Updated: 2007-08-30

[ show close-approach data ]
Alternate Designations
 2002 CA255 = 1128 T-1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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