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JPL Small-Body Database Browser
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277939 (2006 PO18)
Classification: Outer Main-belt Asteroid          SPK-ID: 2277939
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08521622151153783 4.876e-08  
a 3.240433783026285 3.5136e-08 au
q 2.964296259978446 1.5032e-07 au
i 10.06830823091203 5.281e-06 deg
node 125.9015660905434 3.2321e-05 deg
peri 197.0948478642688 4.6425e-05 deg
M 50.7107651067594 3.3306e-05 deg
tp 2458300.375937778589
(2018-Jun-30.87593778)
0.00019718 TDB
period 2130.606039412848
5.83
3.4653e-05
9.487e-08
d
yr
n .1689660093609839 2.7481e-09 deg/d
Q 3.516571306074123 3.813e-08 au
  Orbit Determination Parameters
   # obs. used (total)      259  
   data-arc span      7556 days (20.69 yr)  
   first obs. used      1999-03-21  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53506  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 20:12:18  

Additional Information
 Earth MOID = 1.95219 au 
 Jupiter MOID = 1.77291 au 
 T_jup = 3.154 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457278.5 (2015-Sep-13.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08510095861813574 4.9165e-08  
q 2.970729422283108 1.5106e-07 au
tp 2458286.178625848902
(2018-Jun-16.67862585)
0.00019729 TDB
node 126.0930836545941 3.2151e-05 deg
peri 194.325113121275 4.6245e-05 deg
i 10.08899338744904 5.2928e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      259  
   data-arc span      7556 days (20.69 yr)  
   first obs. used      1999-03-21  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53506  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 20:12:18  

Additional Information
 Jupiter MOID = 1.77291 au 
 T_jup = 3.154 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.417160220503028E-15 -7.272843751888338E-15 1.294771712748903E-13 2.784820463170099E-15 -2.430751987033713E-14 1.557836756679545E-15
q -7.272843751888338E-15 2.281872320199594E-14 -1.236113871827563E-13 -5.991357840555323E-15 4.047196837771682E-14 -4.027510630104905E-15
tp 1.294771712748903E-13 -1.236113871827563E-13 3.892438433237914E-8 -3.254825788873576E-11 6.589647844108529E-9 1.143364875518988E-12
node 2.784820463170099E-15 -5.991357840555323E-15 -3.254825788873576E-11 1.033670975893017E-9 -1.023006147003072E-9 2.919789067217013E-12
peri -2.430751987033713E-14 4.047196837771682E-14 6.589647844108529E-9 -1.023006147003072E-9 2.138553996523827E-9 -2.774701490453328E-12
i 1.557836756679545E-15 -4.027510630104905E-15 1.143364875518988E-12 2.919789067217013E-12 -2.774701490453328E-12 2.801383870334338E-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 15.2   n/a MPO418478  

277939 (2006 PO18)          Discovered 2006-Aug-13 by NEAT at Palomar
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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