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85670 (1998 QZ57)
Classification: Main-belt Asteroid          SPK-ID: 2085670
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1522203950081142 4.8233e-08  
a 2.187520641235814 8.3351e-09 au
q 1.854535385138495 1.0921e-07 au
i 3.124299104214834 5.8077e-06 deg
node 345.3105023718199 7.6377e-05 deg
peri 305.54664348 7.9699e-05 deg
M 303.7444730865141 1.9492e-05 deg
tp 2459185.167029131991
(2020-Dec-01.66702913)
6.4118e-05 TDB
period 1181.752871851243
3.24
6.7542e-06
1.849e-08
d
yr
n .3046322192862977 1.7411e-09 deg/d
Q 2.520505897333133 9.6038e-09 au
  Orbit Determination Parameters
   # obs. used (total)      319  
   data-arc span      8477 days (23.21 yr)  
   first obs. used      1997-02-10  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61951  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 15:39:27  

Additional Information
 Earth MOID = .840509 au 
 Jupiter MOID = 2.64624 au 
 T_jup = 3.658 
[ 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 17.1   n/a MPO410592  

85670 (1998 QZ57)          Discovered 1998-Aug-30 by Spacewatch at Kitt Peak
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1998 QZ57 = 2001 NN11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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