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JPL Small-Body Database Browser
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59669 (1999 JM99)
Classification: Main-belt Asteroid          SPK-ID: 2059669
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1330199239252189 3.313e-08  
a 2.638286722764725 1.507e-08 au
q 2.287342023609646 8.9691e-08 au
i 12.83787499132977 4.6098e-06 deg
node 112.6103791154218 2.2534e-05 deg
peri 36.0272324658626 3.232e-05 deg
M 313.4410236127028 2.3697e-05 deg
tp 2458802.933478373517
(2019-Nov-15.43347837)
0.00010377 TDB
period 1565.241718551813
4.29
1.3411e-05
3.672e-08
d
yr
n .2299964253016958 1.9706e-09 deg/d
Q 2.989231421919805 1.7075e-08 au
  Orbit Determination Parameters
   # obs. used (total)      917  
   data-arc span      7191 days (19.69 yr)  
   first obs. used      1999-05-12  
   last obs. used      2019-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56025  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 03:39:52  

Additional Information
 Earth MOID = 1.31294 au 
 Jupiter MOID = 2.08009 au 
 T_jup = 3.348 
[ 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 14.9   n/a MPO468499  
diameter diameter 6.236 km 1.664 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
rotation period rot_per 5.991 h n/a LCDB (Rev. 2019-January); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.055   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

59669 (1999 JM99)          Discovered 1999-May-12 by LINEAR at Socorro
Reference: 20030614/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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