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136545 (5552 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2136545
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1962927009391416 7.4404e-08  
a 2.606756922005556 1.0809e-08 au
q 2.095069565093282 1.9232e-07 au
i 7.953437966301553 7.7787e-06 deg
node 23.39810436718903 2.873e-05 deg
peri 355.8398393509555 3.2815e-05 deg
M 56.17553558131731 1.1695e-05 deg
tp 2458760.620049265600
(2019-Oct-04.12004927)
5.0172e-05 TDB
period 1537.266736680732
4.21
9.5614e-06
2.618e-08
d
yr
n .2341818705954129 1.4566e-09 deg/d
Q 3.11844427891783 1.2931e-08 au
  Orbit Determination Parameters
   # obs. used (total)      587  
   data-arc span      21651 days (59.28 yr)  
   first obs. used      1960-10-17  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49676  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 15:51:47  

Additional Information
 Earth MOID = 1.0976 au 
 Jupiter MOID = 2.34296 au 
 T_jup = 3.371 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457623.5 (2016-Aug-23.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1971388098821013 7.5232e-08  
q 2.092177827265758 1.9468e-07 au
tp 2457218.936105952845
(2015-Jul-15.43610595)
5.1348e-05 TDB
node 23.45128557516973 2.867e-05 deg
peri 354.9681737883233 3.2672e-05 deg
i 7.966233997586596 7.7841e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      587  
   data-arc span      21651 days (59.28 yr)  
   first obs. used      1960-10-17  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49676  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 15:51:47  

Additional Information
 Jupiter MOID = 2.34296 au 
 T_jup = 3.371 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.659925991532597E-15 -1.463317915357504E-14 -6.440105659450567E-13 2.669275218938576E-14 -3.335705899494856E-13 -1.320825132465583E-14
q -1.463317915357504E-14 3.790185628914126E-14 1.559194116509798E-12 -7.068618335285657E-14 8.402256123736385E-13 3.433112072238456E-14
tp -6.440105659450567E-13 1.559194116509798E-12 2.636602378620103E-9 3.806595606165721E-12 8.042145751819312E-10 -4.036065317561854E-13
node 2.669275218938576E-14 -7.068618335285657E-14 3.806595606165721E-12 8.219840113497346E-10 -8.12711923532363E-10 1.334690520856735E-11
peri -3.335705899494856E-13 8.402256123736385E-13 8.042145751819312E-10 -8.12711923532363E-10 1.067454864382705E-9 -1.327755312177696E-11
i -1.320825132465583E-14 3.433112072238456E-14 -4.036065317561854E-13 1.334690520856735E-11 -1.327755312177696E-11 6.059193655578366E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.1   n/a MPO502856  

136545 (5552 P-L)          Discovered 1960-Oct-17 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

Alternate Designations
 5552 P-L = 1998 UY42 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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