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JPL Small-Body Database Browser
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59555 (1999 JE41)
Classification: Main-belt Asteroid          SPK-ID: 2059555
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2073626882249184 3.8909e-08  
a 2.543057375081519 1.4035e-08 au
q 2.015722161474411 9.9997e-08 au
i 4.689180873560021 3.5574e-06 deg
node 118.7958516291558 7.4911e-05 deg
peri 199.5165899117959 7.637e-05 deg
M 1.921786434458438 1.7793e-05 deg
tp 2458992.592571248716
(2020-May-23.09257125)
7.3189e-05 TDB
period 1481.264670943752
4.06
1.2263e-05
3.357e-08
d
yr
n .2430355675536599 2.012e-09 deg/d
Q 3.070392588688627 1.6946e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1101  
   data-arc span      7358 days (20.15 yr)  
   first obs. used      1999-05-10  
   last obs. used      2019-07-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60013  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 12:49:40  

Additional Information
 Earth MOID = 1.00313 au 
 Jupiter MOID = 2.23801 au 
 T_jup = 3.409 
[ 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 15.1   n/a MPO436198  
rotation period rot_per 5.39 h n/a LCDB (Rev. 2019-August); 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:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]

59555 (1999 JE41)          Discovered 1999-May-10 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1992-May-08 00:45 < 00:01 Juno 0.0273295916855399 0.0273279750743194 0.0273312087011586 7.86597822137478 7.86597816478213 2448750.531301126 0.261390892317107 201.792841479964 35.8086483984772 68.6760560008839 106583.231253201 T 17 CATAB v2.0f-lin.ifort 2020-Feb-23 12:49:55 2020-Feb-23 12:49

Alternate Designations
 1999 JE41 = 2000 UG87 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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