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66346 (1999 JU71)
Classification: Main-belt Asteroid          SPK-ID: 2066346
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2188340037445952 3.5935e-08  
a 2.228830791316376 6.5584e-09 au
q 1.741086825583379 8.1476e-08 au
i 6.739833181367483 3.7394e-06 deg
node 191.0224089893322 3.0708e-05 deg
peri 123.5515092621241 3.1954e-05 deg
M 112.9929741200613 8.1862e-06 deg
tp 2458819.027694201780
(2019-Dec-01.52769420)
2.7059e-05 TDB
period 1215.385568499494
3.33
5.3645e-06
1.469e-08
d
yr
n .2962022993612252 1.3074e-09 deg/d
Q 2.716574757049373 7.9936e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1192  
   data-arc span      10539 days (28.85 yr)  
   first obs. used      1992-04-07  
   last obs. used      2021-02-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50761  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:21:31  

Additional Information
 Earth MOID = .736973 au 
 Jupiter MOID = 2.60949 au 
 T_jup = 3.603 
[ 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 15.42   n/a MPCxxxxx  
rotation period rot_per 5.233 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Stephens, R.D.; Warner, B.D. (2019) Minor Planet Bull. 46, 449-456.]

66346 (1999 JU71)          Discovered 1999-May-12 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

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