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154768 (2004 PO23)
Classification: Main-belt Asteroid          SPK-ID: 2154768
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 .08107947965973536 4.7746e-08  
a 2.974511820566995 4.6496e-08 au
q 2.733339949913691 1.4341e-07 au
i 8.363954079560964 7.5432e-06 deg
node 322.7967833784102 3.8684e-05 deg
peri 70.3934614856085 6.2681e-05 deg
M 324.0225103009152 4.7887e-05 deg
tp 2459187.762290996837
(2020-Dec-04.26229100)
0.00024956 TDB
period 1873.794567734285
5.13
4.3935e-05
1.203e-07
d
yr
n .1921235156718898 4.5047e-09 deg/d
Q 3.2156836912203 5.0266e-08 au
  Orbit Determination Parameters
   # obs. used (total)      280  
   data-arc span      5940 days (16.26 yr)  
   first obs. used      2002-02-11  
   last obs. used      2018-05-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63212  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 18:45:45  

Additional Information
 Earth MOID = 1.75263 au 
 Jupiter MOID = 2.1539 au 
 T_jup = 3.240 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456909.5 (2014-Sep-09.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0838132821796143 4.8628e-08  
q 2.726522917106389 1.4585e-07 au
tp 2457299.522698486494
(2015-Oct-04.02269849)
0.00023718 TDB
node 323.1393915059577 3.8729e-05 deg
peri 67.73828609556729 6.0908e-05 deg
i 8.361211906904556 7.5351e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      280  
   data-arc span      5940 days (16.26 yr)  
   first obs. used      2002-02-11  
   last obs. used      2018-05-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63212  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 18:45:45  

Additional Information
 Jupiter MOID = 2.1539 au 
 T_jup = 3.240 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.364710018160346E-15 -6.792552868716172E-15 -1.117717960136283E-12 1.35966248837216E-14 -2.661533014703618E-13 -7.367195259212806E-15
q -6.792552868716172E-15 2.12717886289529E-14 2.670336377137311E-12 -4.536795331836877E-14 5.860586492916418E-13 2.458838776704439E-14
tp -1.117717960136283E-12 2.670336377137311E-12 5.625662060019891E-8 3.243388974155805E-11 1.117243919328199E-8 1.254640368104316E-12
node 1.35966248837216E-14 -4.536795331836877E-14 3.243388974155805E-11 1.499900964171923E-9 -1.477017707003732E-9 -5.690931079670545E-11
peri -2.661533014703618E-13 5.860586492916418E-13 1.117243919328199E-8 -1.477017707003732E-9 3.709842018912107E-9 5.649738901629795E-11
i -7.367195259212806E-15 2.458838776704439E-14 1.254640368104316E-12 -5.690931079670545E-11 5.649738901629795E-11 5.677744263310408E-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 15.5   n/a MPO417826  

154768 (2004 PO23)          Discovered 2004-Aug-08 by LINEAR at Socorro
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

[ show close-approach data ]
Alternate Designations
 2004 PO23 = 2002 EP133 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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