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JPL Small-Body Database Browser
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80071 (1999 JR97)
Classification: Main-belt Asteroid          SPK-ID: 2080071
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0834146709534139 5.5386e-08  
a 3.106865121015384 3.1855e-08 au
q 2.847706989249247 1.8084e-07 au
i 19.60917979270955 6.7877e-06 deg
node 94.22001524815188 1.9138e-05 deg
peri 78.06395127388191 4.7934e-05 deg
M 288.2560953307004 4.5315e-05 deg
tp 2458999.125002456936
(2020-May-29.62500246)
0.00025421 TDB
period 2000.239623783751
5.48
3.0763e-05
8.422e-08
d
yr
n .179978436443033 2.768e-09 deg/d
Q 3.36602325278152 3.4512e-08 au
  Orbit Determination Parameters
   # obs. used (total)      654  
   data-arc span      7276 days (19.92 yr)  
   first obs. used      1999-05-12  
   last obs. used      2019-04-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55127  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:41:12  

Additional Information
 Earth MOID = 1.93385 au 
 Jupiter MOID = 1.95281 au 
 T_jup = 3.126 
[ 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 14.1   n/a MPO493435  
diameter diameter 8.642 km 0.068 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.059   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

80071 (1999 JR97)          Discovered 1999-May-12 by LINEAR at Socorro
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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