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154772 (2004 PK25)
Classification: Main-belt Asteroid          SPK-ID: 2154772
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08168067546505788 5.1154e-08  
a 2.803619009333405 2.5414e-08 au
q 2.574617514904376 1.4951e-07 au
i 4.968497734047409 5.155e-06 deg
node 148.444658611341 5.9417e-05 deg
peri 211.2957449557369 6.5899e-05 deg
M 100.3283680880664 2.9181e-05 deg
tp 2458522.642762349368
(2019-Feb-08.14276235)
0.00013813 TDB
period 1714.655673490314
4.69
2.3314e-05
6.383e-08
d
yr
n .209954689775815 2.8547e-09 deg/d
Q 3.032620503762435 2.7489e-08 au
  Orbit Determination Parameters
   # obs. used (total)      285  
   data-arc span      8832 days (24.18 yr)  
   first obs. used      1995-09-19  
   last obs. used      2019-11-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65554  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 13:30:21  

Additional Information
 Earth MOID = 1.5721 au 
 Jupiter MOID = 2.36447 au 
 T_jup = 3.314 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457154.5 (2015-May-12.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08170998678746963 5.1171e-08  
q 2.573196929680648 1.4938e-07 au
tp 2456797.032748334325
(2014-May-19.53274833)
0.00013726 TDB
node 148.5314156076572 5.9295e-05 deg
peri 208.9908278073976 6.5801e-05 deg
i 4.972555272887775 5.1621e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      285  
   data-arc span      8832 days (24.18 yr)  
   first obs. used      1995-09-19  
   last obs. used      2019-11-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65554  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 13:30:21  

Additional Information
 Jupiter MOID = 2.36447 au 
 T_jup = 3.314 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.618471162299296E-15 -7.553980201877334E-15 9.63126529843673E-13 -3.660336973047372E-15 1.534041949458579E-13 -8.649263928331079E-16
q -7.553980201877334E-15 2.231544606391574E-14 -2.855258829583297E-12 1.088182020021247E-14 -4.3545328860166E-13 2.918127747817307E-15
tp 9.63126529843673E-13 -2.855258829583297E-12 1.884086009134639E-8 -3.616965215458903E-12 3.94457384714809E-9 -2.06196971888798E-12
node -3.660336973047372E-15 1.088182020021247E-14 -3.616965215458903E-12 3.515852074566879E-9 -3.503025194331858E-9 6.200692549542498E-11
peri 1.534041949458579E-13 -4.3545328860166E-13 3.94457384714809E-9 -3.503025194331858E-9 4.329801067929094E-9 -6.217625753737746E-11
i -8.649263928331079E-16 2.918127747817307E-15 -2.06196971888798E-12 6.200692549542498E-11 -6.217625753737746E-11 2.664690705826926E-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 15.9   n/a MPO454006  

154772 (2004 PK25)          Discovered 2004-Aug-08 by LINEAR at Socorro
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

[ show close-approach data ]
Alternate Designations
 2004 PK25 = 1995 SR23 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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