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442257 (2011 PF8)
Classification: Main-belt Asteroid          SPK-ID: 2442257
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2719285659009924 2.8944e-07  
a 2.574783216976838 1.0387e-07 au
q 1.874626109278383 8.1262e-07 au
i 4.548700793722502 1.4316e-05 deg
node 321.2642780410106 5.1855e-05 deg
peri 333.2218483331185 0.00015931 deg
M 118.1352422420169 6.4736e-05 deg
tp 2458705.293419951237
(2019-Aug-09.79341995)
0.00029606 TDB
period 1509.070159202231
4.13
9.1317e-05
2.5e-07
d
yr
n .2385574970154561 1.4436e-08 deg/d
Q 3.274940324675294 1.3212e-07 au
  Orbit Determination Parameters
   # obs. used (total)      155  
   data-arc span      4376 days (11.98 yr)  
   first obs. used      2003-10-17  
   last obs. used      2015-10-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44359  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 14:43:38  

Additional Information
 Earth MOID = .858048 au 
 Jupiter MOID = 1.95308 au 
 T_jup = 3.370 
[ 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 17.8   n/a MPO535249  

442257 (2011 PF8)          Discovered 2007-Sep-15 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

[ show close-approach data ]
Alternate Designations
 2011 PF8 = 2007 RU269 = 2011 PO8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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