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56266 (1999 JJ97)
Classification: Main-belt Asteroid          SPK-ID: 2056266
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08014000852113275 4.6038e-08  
a 3.04640202239178 2.1241e-08 au
q 2.802263338358506 1.4226e-07 au
i 12.13901376140547 5.3395e-06 deg
node 126.3363969135763 2.3297e-05 deg
peri 175.0303518693741 3.8838e-05 deg
M 209.928876510701 3.1379e-05 deg
tp 2459410.106306475364
(2021-Jul-14.60630648)
0.00017123 TDB
period 1942.134259772592
5.32
2.0312e-05
5.561e-08
d
yr
n .1853630860938281 1.9386e-09 deg/d
Q 3.290540706425053 2.2943e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1040  
   data-arc span      7315 days (20.03 yr)  
   first obs. used      1999-05-12  
   last obs. used      2019-05-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56668  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 03:24:11  

Additional Information
 Earth MOID = 1.78632 au 
 Jupiter MOID = 1.94757 au 
 T_jup = 3.199 
[ 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 14.0   n/a MPO436176  
diameter diameter 5.271 km 0.812 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.193   0.095 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

56266 (1999 JJ97)          Discovered 1999-May-12 by LINEAR at Socorro
Reference: 20030318/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 JJ97 = 2000 QL135 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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