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66309 (1999 JX41)
Classification: Main-belt Asteroid          SPK-ID: 2066309
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2214214062824642 2.6713e-08  
a 2.35159099579829 7.5794e-09 au
q 1.830898410507453 6.4178e-08 au
i 4.501072990143238 4.1265e-06 deg
node 193.0989767176926 4.0284e-05 deg
peri 83.4134347453363 4.1646e-05 deg
M 324.9420646641842 1.1712e-05 deg
tp 2459328.769955675209
(2021-Apr-24.26995568)
4.3181e-05 TDB
period 1317.167813813034
3.61
6.368e-06
1.743e-08
d
yr
n .2733136933841753 1.3214e-09 deg/d
Q 2.872283581089128 9.2576e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1280  
   data-arc span      7724 days (21.15 yr)  
   first obs. used      1999-04-19  
   last obs. used      2020-06-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52497  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:21:05  

Additional Information
 Earth MOID = .81958 au 
 Jupiter MOID = 2.26873 au 
 T_jup = 3.520 
[ 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 15.38   n/a E2021B10  
diameter diameter 3.447 km 0.457 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.094   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66309 (1999 JX41)          Discovered 1999-May-10 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 JX41 = 1999 KP16 = 2000 WH168 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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