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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .272017612791805 2.8914e-07  
a 2.574235870740088 1.0431e-07 au
q 1.873998374418336 8.1191e-07 au
i 4.548689910744166 1.4316e-05 deg
node 321.2663064874295 5.1862e-05 deg
peri 333.1758891722217 0.00015929 deg
M 70.45953110700431 6.7027e-05 deg
tp 2458705.237575636779
(2019-Aug-09.73757564)
0.00029581 TDB
period 1508.588988611551
4.13
9.1698e-05
2.511e-07
d
yr
n .2386335858989204 1.4505e-08 deg/d
Q 3.27447336706184 1.3269e-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.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44351  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 10:40:28  

Additional Information
 Earth MOID = .85939 au 
 Jupiter MOID = 1.95384 au 
 T_jup = 3.371 
[ 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 17.9   n/a MPO349187  

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

[ 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
1942-Nov-26 07:05 00:11 Jupiter 1.93760483194395 1.93760347476452 1.93760618914837 1.54670541088347 1.23207106564072 2430689.794966243 10.6388561318144 588.730690874716 182.000046422825 -62.6810520188671 1002219.57824942 T 15 CATAB v2.0f-lin.ifort 2020-Feb-26 10:40:45 2020-Feb-26 10:40
2025-Jun-17 20:57 00:05 Jupiter 1.96009136436213 1.96008773008327 1.96009499864178 1.54452470190518 1.23340510482487 2460844.372607904 5.00168238224663 514.313832084689 155.783393038508 -52.2228183168474 956430.489195369 T 15 CATAB v2.0f-lin.ifort 2020-Feb-26 10:40:45 2020-Feb-26 10:40
2038-Apr-06 00:28 00:07 Jupiter 1.99340554837488 1.99340022084431 1.99341087588473 1.71315409213484 1.44397796522318 2465519.519484743 7.36195548580975 646.425381823775 86.5827942654902 -62.7081080334746 346009.082966992 T 15 CATAB v2.0f-lin.ifort 2020-Feb-26 10:40:45 2020-Feb-26 10:40
2120-Oct-27 16:04 00:23 Jupiter 1.93786873459087 1.93786683725166 1.93787063204717 1.57768012821009 1.27078524279889 2495674.169705117 22.5321784498919 1275.67766576366 112.193807674679 -66.1824181034408 1124698.47272102 T 15 CATAB v2.0f-lin.ifort 2020-Feb-26 10:40:45 2020-Feb-26 10:40

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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