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JPL Small-Body Database Browser
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35821 (1999 JW50)
Classification: Main-belt Asteroid          SPK-ID: 2035821
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 .1255186385916879 8.0294e-08  
a 2.483681689307927 1.2453e-08 au
q 2.171933344970892 1.937e-07 au
i 5.94296002927279 5.882e-06 deg
node 190.9304373945296 3.7266e-05 deg
peri 199.039805662837 4.0752e-05 deg
M 248.5927555956152 1.5386e-05 deg
tp 2459042.938857039046
(2020-Jul-12.43885704)
6.2127e-05 TDB
period 1429.691483579928
3.91
1.0753e-05
2.944e-08
d
yr
n .251802577083669 1.8938e-09 deg/d
Q 2.795430033644962 1.4016e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1162  
   data-arc span      8898 days (24.36 yr)  
   first obs. used      1994-02-03  
   last obs. used      2018-06-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57588  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 01:48:54  

Additional Information
 Earth MOID = 1.17701 au 
 Jupiter MOID = 2.63775 au 
 T_jup = 3.458 
[ 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 14.3   n/a MPO436016  
rotation period rot_per 4.931 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.]

35821 (1999 JW50)          Discovered 1999-May-10 by LINEAR at Socorro
Reference: 20020227/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 JW50 = 2000 QY8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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