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160397 (2004 PJ85)
Classification: Main-belt Asteroid          SPK-ID: 2160397
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2386210261015013 3.5754e-08  
a 2.2235332641582 1.0484e-08 au
q 1.69295147509395 8.4128e-08 au
i 7.205804054016493 4.0218e-06 deg
node 10.90462454594021 2.8165e-05 deg
peri 302.2471400973573 2.9524e-05 deg
M 60.5664250138819 8.3714e-06 deg
tp 2459192.752019759702
(2020-Dec-09.25201976)
2.7673e-05 TDB
period 1211.055017193033
3.32
8.5652e-06
2.345e-08
d
yr
n .2972614744079944 2.1024e-09 deg/d
Q 2.754115053222451 1.2986e-08 au
  Orbit Determination Parameters
   # obs. used (total)      633  
   data-arc span      9980 days (27.32 yr)  
   first obs. used      1993-02-26  
   last obs. used      2020-06-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52729  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 20:01:11  

Additional Information
 Earth MOID = .692439 au 
 Jupiter MOID = 2.57 au 
 T_jup = 3.600 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457719.5 (2016-Nov-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2381630051825649 3.5759e-08  
q 1.694624517643948 8.412e-08 au
tp 2457981.459819656572
(2017-Aug-15.95981966)
2.6386e-05 TDB
node 10.93940066980421 2.8163e-05 deg
peri 302.2447132868185 2.9528e-05 deg
i 7.205138692350018 4.0213e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      633  
   data-arc span      9980 days (27.32 yr)  
   first obs. used      1993-02-26  
   last obs. used      2020-06-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52729  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 20:01:11  

Additional Information
 Jupiter MOID = 2.57 au 
 T_jup = 3.600 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.278728313825457E-15 -2.998533531436916E-15 6.049568140813493E-14 -8.36018032267692E-15 6.807480413516405E-14 -5.363684733276572E-15
q -2.998533531436916E-15 7.076258463476198E-15 -1.331967009112834E-13 1.873003500259242E-14 -1.594850553734311E-13 1.288114186388531E-14
tp 6.049568140813493E-14 -1.331967009112834E-13 6.962228885766926E-10 -4.329446004674507E-12 2.401921441183414E-10 1.285911855473926E-12
node -8.36018032267692E-15 1.873003500259242E-14 -4.329446004674507E-12 7.931595208539716E-10 -7.881468693591833E-10 1.282072874680095E-11
peri 6.807480413516405E-14 -1.594850553734311E-13 2.401921441183414E-10 -7.881468693591833E-10 8.718835263385159E-10 -1.247651897235814E-11
i -5.363684733276572E-15 1.288114186388531E-14 1.285911855473926E-12 1.282072874680095E-11 -1.247651897235814E-11 1.617103804686768E-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 16.61   n/a E2021B55  

160397 (2004 PJ85)          Discovered 2004-Aug-10 by LINEAR at Socorro
Reference: 20070730/Numbers.arcLast Updated: 2007-08-06

[ 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
1922-Apr-22 10:22 00:09 Amphi 0.0485293203996968 0.0484893067368257 0.0485693368039054 4.08971803051044 4.08971800154531 2423166.932283495 8.51395666312623 2075.50091099187 114.67359968871 16.1112210316893 17877.3981532089 T 23 CATAB v2.0f-lin.ifort 2021-Apr-13 20:01:13 2021-Apr-13 20:01
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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