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312252 (2008 AB1)
Classification: Main-belt Asteroid          SPK-ID: 2312252
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07903671322473899 5.9149e-08  
a 2.661639424499325 2.6598e-08 au
q 2.451272192597513 1.5566e-07 au
i 14.45292900717537 5.721e-06 deg
node 102.7404134972678 2.5793e-05 deg
peri 48.92712800179132 4.6129e-05 deg
M 187.3318479476891 4.0369e-05 deg
tp 2459361.232548520600
(2021-May-26.73254852)
0.00018195 TDB
period 1586.06966144195
4.34
2.3774e-05
6.509e-08
d
yr
n .2269761592140358 3.4023e-09 deg/d
Q 2.872006656401137 2.87e-08 au
  Orbit Determination Parameters
   # obs. used (total)      268  
   data-arc span      6231 days (17.06 yr)  
   first obs. used      2002-10-10  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57541  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 08:09:30  

Additional Information
 Earth MOID = 1.48768 au 
 Jupiter MOID = 2.23834 au 
 T_jup = 3.336 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457074.5 (2015-Feb-21.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07785142906310599 5.9484e-08  
q 2.455641343311205 1.5647e-07 au
tp 2457776.491872591047
(2017-Jan-22.99187259)
0.00017615 TDB
node 102.8118695014373 2.5809e-05 deg
peri 49.24108544683537 4.6477e-05 deg
i 14.44558356960818 5.7181e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      268  
   data-arc span      6231 days (17.06 yr)  
   first obs. used      2002-10-10  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57541  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 08:09:30  

Additional Information
 Jupiter MOID = 2.23834 au 
 T_jup = 3.336 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.538289939301212E-15 -9.194127906236964E-15 1.35521879663159E-12 2.484302713004552E-14 3.647364331206941E-13 -1.933794512114382E-15
q -9.194127906236964E-15 2.44822842077269E-14 -2.48479084328626E-12 -6.069657866139538E-14 -7.802607066313539E-13 8.434852775305257E-15
tp 1.35521879663159E-12 -2.48479084328626E-12 3.103031404492953E-8 7.812966719596674E-11 6.846721282783852E-9 2.192136487607833E-11
node 2.484302713004552E-14 -6.069657866139538E-14 7.812966719596674E-11 6.66102336967723E-10 -6.265530974068132E-10 -2.014094315298761E-12
peri 3.647364331206941E-13 -7.802607066313539E-13 6.846721282783852E-9 -6.265530974068132E-10 2.160097230780439E-9 6.466516354451068E-12
i -1.933794512114382E-15 8.434852775305257E-15 2.192136487607833E-11 -2.014094315298761E-12 6.466516354451068E-12 3.269705996507649E-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 16.2   n/a MPO455301  

312252 (2008 AB1)          Discovered 2008-Jan-01 by Spacewatch at Kitt Peak
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

[ show close-approach data ]
Alternate Designations
 2008 AB1 = 2004 EX18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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