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295456 (2008 PB4)
Classification: Main-belt Asteroid          SPK-ID: 2295456
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3149570244253195 5.9372e-08  
a 2.644093155622381 2.4856e-08 au
q 1.811317443024203 1.5377e-07 au
i 10.30538533767598 9.5617e-06 deg
node 310.3848084992217 3.8978e-05 deg
peri 72.07394778531865 4.2504e-05 deg
M 244.1873352056797 2.0955e-05 deg
tp 2459505.704381825149
(2021-Oct-18.20438182)
9.6843e-05 TDB
period 1570.411817913484
4.30
2.2144e-05
6.063e-08
d
yr
n .2292392325971612 3.2325e-09 deg/d
Q 3.47686886822056 3.2685e-08 au
  Orbit Determination Parameters
   # obs. used (total)      228  
   data-arc span      9059 days (24.80 yr)  
   first obs. used      1995-09-02  
   last obs. used      2020-06-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54082  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 19:49:20  

Additional Information
 Earth MOID = .844826 au 
 Jupiter MOID = 2.15224 au 
 T_jup = 3.299 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456831.5 (2014-Jun-23.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3147195606266783 5.9281e-08  
q 1.812368618975953 1.5335e-07 au
tp 2456366.934051265086
(2013-Mar-15.43405127)
6.9292e-05 TDB
node 310.4063997514635 3.8974e-05 deg
peri 72.34483165546884 4.2503e-05 deg
i 10.3050877850533 9.5612e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      228  
   data-arc span      9059 days (24.80 yr)  
   first obs. used      1995-09-02  
   last obs. used      2020-06-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54082  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 19:49:20  

Additional Information
 Jupiter MOID = 2.15224 au 
 T_jup = 3.299 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.514250267050886E-15 -9.038607069392104E-15 -1.935837429170376E-13 6.394572830567688E-15 -5.250071758110345E-14 8.877364033520702E-18
q -9.038607069392104E-15 2.351749431889341E-14 9.840495564853749E-13 -2.091144269920995E-14 2.577389773484546E-13 -7.514748053993662E-16
tp -1.935837429170376E-13 9.840495564853749E-13 4.801371690041772E-9 -5.450453435391561E-11 1.214934494459165E-9 2.487665851899668E-12
node 6.394572830567688E-15 -2.091144269920995E-14 -5.450453435391561E-11 1.518982248458082E-9 -1.505702922906961E-9 -1.838516024850217E-11
peri -5.250071758110345E-14 2.577389773484546E-13 1.214934494459165E-9 -1.505702922906961E-9 1.806518421003362E-9 1.862458638438901E-11
i 8.877364033520702E-18 -7.514748053993662E-16 2.487665851899668E-12 -1.838516024850217E-11 1.862458638438901E-11 9.141560269553422E-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 16.1   n/a MPO245670  

295456 (2008 PB4)          Discovered 2008-Aug-05 by La Sagra at La Sagra
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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