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66342 (1999 JA68)
Classification: Main-belt Asteroid          SPK-ID: 2066342
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1883144451624757 3.5954e-08  
a 2.303292032077778 6.9351e-09 au
q 1.8695488710099 8.352e-08 au
i 8.16686597870747 4.1146e-06 deg
node 73.74403899065439 2.7376e-05 deg
peri 190.671796254182 2.9814e-05 deg
M 33.01415042741472 1.1616e-05 deg
tp 2459083.410066398971
(2020-Aug-21.91006640)
4.1157e-05 TDB
period 1276.797238476491
3.50
5.7666e-06
1.579e-08
d
yr
n .2819554970447475 1.2734e-09 deg/d
Q 2.737035193145656 8.2411e-09 au
  Orbit Determination Parameters
   # obs. used (total)      916  
   data-arc span      7765 days (21.26 yr)  
   first obs. used      1999-04-12  
   last obs. used      2020-07-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51077  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:21:28  

Additional Information
 Earth MOID = .852872 au 
 Jupiter MOID = 2.34014 au 
 T_jup = 3.553 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.00   n/a E2021B10  
diameter diameter 2.388 km 0.104 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.123   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66342 (1999 JA68)          Discovered 1999-May-12 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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