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JPL Small-Body Database Browser
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85281 (1994 PZ16)
Classification: Main-belt Asteroid          SPK-ID: 2085281
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1950030592025521 3.7069e-08  
a 2.283283011304266 7.9581e-09 au
q 1.838035839074719 8.5368e-08 au
i 6.219756584175597 4.9005e-06 deg
node 166.5373310928917 3.8584e-05 deg
peri 130.8672478596546 4.1045e-05 deg
M 80.73897413308939 1.1811e-05 deg
tp 2458317.869666446752
(2018-Jul-18.36966645)
4.1538e-05 TDB
period 1260.195849298886
3.45
6.5884e-06
1.804e-08
d
yr
n .2856698823443096 1.4935e-09 deg/d
Q 2.728530183533814 9.51e-09 au
  Orbit Determination Parameters
   # obs. used (total)      696  
   data-arc span      8857 days (24.25 yr)  
   first obs. used      1994-08-10  
   last obs. used      2018-11-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59721  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 04:35:14  

Additional Information
 Earth MOID = .828974 au 
 Jupiter MOID = 2.50362 au 
 T_jup = 3.571 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456595.5 (2013-Oct-30.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1953704587170025 3.7068e-08  
q 1.836825640516995 8.5402e-08 au
tp 2457058.586195995872
(2015-Feb-05.08619600)
4.2961e-05 TDB
node 166.559874744026 3.8564e-05 deg
peri 131.0360468054166 4.102e-05 deg
i 6.221372900883352 4.9025e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      696  
   data-arc span      8857 days (24.25 yr)  
   first obs. used      1994-08-10  
   last obs. used      2018-11-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59721  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 04:35:14  

Additional Information
 Jupiter MOID = 2.50362 au 
 T_jup = 3.571 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.374010242537486E-15 -3.156638399229429E-15 2.986205708035423E-13 -3.694615226383341E-14 1.322137426597034E-13 -6.53711783664289E-15
q -3.156638399229429E-15 7.293566025882723E-15 -7.706878354689389E-13 8.48063197876221E-14 -3.344673203244219E-13 1.504962756590356E-14
tp 2.986205708035423E-13 -7.706878354689389E-13 1.845674120196371E-9 -1.36355384088669E-11 6.15142650535405E-10 -3.388568819011896E-12
node -3.694615226383341E-14 8.48063197876221E-14 -1.36355384088669E-11 1.48719843164903E-9 -1.48142285335895E-9 2.155471763080105E-11
peri 1.322137426597034E-13 -3.344673203244219E-13 6.15142650535405E-10 -1.48142285335895E-9 1.682628614732955E-9 -2.239260516833805E-11
i -6.53711783664289E-15 1.504962756590356E-14 -3.388568819011896E-12 2.155471763080105E-11 -2.239260516833805E-11 2.403443255935811E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.1   n/a MPO453283  

85281 (1994 PZ16)          Discovered 1994-Aug-10 by Elst, E. W. at La Silla
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1994 PZ16 = 1994 RE18 = 2000 DZ66 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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