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193798 (2001 PF8)
Classification: Main-belt Asteroid          SPK-ID: 2193798
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2200230909704988 3.6061e-08  
a 2.234775966394748 9.9267e-09 au
q 1.743073650641992 8.1813e-08 au
i 6.80857352888669 5.5404e-06 deg
node 46.85827300470336 3.6408e-05 deg
peri 248.8947580361683 4.0035e-05 deg
M 244.1126545998561 1.904e-05 deg
tp 2459393.310356084149
(2021-Jun-27.81035608)
6.627e-05 TDB
period 1220.251682373232
3.34
8.1304e-06
2.226e-08
d
yr
n .2950211052361316 1.9657e-09 deg/d
Q 2.726478282147504 1.2111e-08 au
  Orbit Determination Parameters
   # obs. used (total)      283  
   data-arc span      7778 days (21.30 yr)  
   first obs. used      1998-10-17  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .69049  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 22:09:19  

Additional Information
 Earth MOID = .741532 au 
 Jupiter MOID = 2.50154 au 
 T_jup = 3.598 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457234.5 (2015-Jul-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2205168709985329 3.6011e-08  
q 1.741740624775682 8.1721e-08 au
tp 2456952.680909137583
(2014-Oct-22.18090914)
5.6449e-05 TDB
node 46.88457948797907 3.6419e-05 deg
peri 248.8754371991965 4.0034e-05 deg
i 6.808545387079686 5.5398e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      283  
   data-arc span      7778 days (21.30 yr)  
   first obs. used      1998-10-17  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .69049  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 22:09:19  

Additional Information
 Jupiter MOID = 2.50154 au 
 T_jup = 3.598 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.296819489968773E-15 -2.929966265428502E-15 -2.809277148231052E-13 -9.495526710296042E-17 -7.554131222966587E-14 9.649428707069426E-16
q -2.929966265428502E-15 6.678379706392607E-15 8.453133133038482E-13 -3.723665872443702E-15 2.335002864595265E-13 -1.444456685553035E-15
tp -2.809277148231052E-13 8.453133133038482E-13 3.186526453584644E-9 -4.831642547784229E-11 9.536768869579099E-10 4.129228451199662E-12
node -9.495526710296042E-17 -3.723665872443702E-15 -4.831642547784229E-11 1.32637145525804E-9 -1.329811918103701E-9 -1.8597646908459E-11
peri -7.554131222966587E-14 2.335002864595265E-13 9.536768869579099E-10 -1.329811918103701E-9 1.602707365891219E-9 1.968991557088421E-11
i 9.649428707069426E-16 -1.444456685553035E-15 4.129228451199662E-12 -1.8597646908459E-11 1.968991557088421E-11 3.06888463711724E-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 17.3   n/a MPO470086  

193798 (2001 PF8)          Discovered 2001-Aug-11 by NEAT at Palomar
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

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Alternate Designations
 2001 PF8 = 1998 UR47 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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