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187090 (2005 PK9)
Classification: Main-belt Asteroid          SPK-ID: 2187090
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07422043673224621 6.422e-08  
a 2.512004562575317 1.6489e-08 au
q 2.325562486867582 1.6459e-07 au
i 1.422571590391832 5.8657e-06 deg
node 358.8483767716132 0.00015816 deg
peri 346.0398906901335 0.00016146 deg
M 290.4709620594239 3.3652e-05 deg
tp 2459481.361869362869
(2021-Sep-23.86186936)
0.00013732 TDB
period 1454.216482285403
3.98
1.4318e-05
3.92e-08
d
yr
n .2475559893491476 2.4375e-09 deg/d
Q 2.698446638283053 1.7713e-08 au
  Orbit Determination Parameters
   # obs. used (total)      236  
   data-arc span      6877 days (18.83 yr)  
   first obs. used      2001-08-25  
   last obs. used      2020-06-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56875  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:53:58  

Additional Information
 Earth MOID = 1.31602 au 
 Jupiter MOID = 2.57736 au 
 T_jup = 3.457 
[ show covariance matrix ]

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 17.22   n/a E2021B55  

187090 (2005 PK9)          Discovered 2005-Aug-04 by NEAT at Palomar
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2057-Aug-09 17:22 < 00:01 Juno 0.0423899442348786 0.0423844184003889 0.042395473015578 6.76296953535689 6.76296949291979 2472585.223665961 0.456776061624324 637.067971582336 67.178247756393 -65.0533065830797 85662.1300329162 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 21:53:59 2021-Apr-13 21:53
2110-Sep-08 18:54 00:01 David 0.0372498105582132 0.0372462285961473 0.0372534077235248 5.67328017538442 5.67328010389781 2491972.287448305 1.41761169053789 1224.3381008143 36.180678788872 -81.7681785930251 152362.852072096 T 18 CATAB v2.0f-lin.ifort 2021-Apr-13 21:53:59 2021-Apr-13 21:53

Alternate Designations
 2005 PK9 = 2004 GF66 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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