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35919 (1999 JY99)
Classification: Main-belt Asteroid          SPK-ID: 2035919
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06382097987238738 4.2773e-08  
a 2.911604223146369 1.949e-08 au
q 2.725782788624586 1.2906e-07 au
i 12.9096562790589 4.9259e-06 deg
node 119.4628105820763 1.9668e-05 deg
peri 275.2396181383007 4.2693e-05 deg
M 297.0927617423672 3.9585e-05 deg
tp 2459317.599134268905
(2021-Apr-13.09913427)
0.00020041 TDB
period 1814.666984255264
4.97
1.8221e-05
4.989e-08
d
yr
n .1983835067940817 1.9919e-09 deg/d
Q 3.097425657668151 2.0734e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1239  
   data-arc span      8132 days (22.26 yr)  
   first obs. used      1998-02-24  
   last obs. used      2020-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56017  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 20:33:55  

Additional Information
 Earth MOID = 1.77112 au 
 Jupiter MOID = 2.20042 au 
 T_jup = 3.242 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456599.5 (2013-Nov-03.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06734431284484178 4.3006e-08  
q 2.714686786674025 1.3025e-07 au
tp 2457494.917354633527
(2016-Apr-16.41735463)
0.00018473 TDB
node 119.6025449346876 1.9736e-05 deg
peri 273.8479126470637 4.0766e-05 deg
i 12.88881107040813 4.9193e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1239  
   data-arc span      8132 days (22.26 yr)  
   first obs. used      1998-02-24  
   last obs. used      2020-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56017  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 20:33:55  

Additional Information
 Jupiter MOID = 2.20042 au 
 T_jup = 3.242 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.849522185167761E-15 -5.550980517190995E-15 1.049244886047303E-12 2.901322375140991E-15 2.555187673026223E-13 2.14360663355791E-15
q -5.550980517190995E-15 1.696626239329067E-14 -2.384631332031292E-12 -8.273417840885524E-15 -6.499572443106785E-13 -5.405650274563241E-15
tp 1.049244886047303E-12 -2.384631332031292E-12 3.412476631910076E-8 -9.876466623357735E-12 6.601217994600317E-9 1.068381510522363E-11
node 2.901322375140991E-15 -8.273417840885524E-15 -9.876466623357735E-12 3.895200260861686E-10 -3.813548031369921E-10 -2.25808586697937E-11
peri 2.555187673026223E-13 -6.499572443106785E-13 6.601217994600317E-9 -3.813548031369921E-10 1.661901963527937E-9 2.407971990557382E-11
i 2.14360663355791E-15 -5.405650274563241E-15 1.068381510522363E-11 -2.25808586697937E-11 2.407971990557382E-11 2.419951005459835E-11

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 13.5   n/a MPO347782  
diameter diameter 11.478 km 0.214 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.942 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.064   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

35919 (1999 JY99)          Discovered 1999-May-12 by LINEAR at Socorro
Reference: 20020227/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 JY99 = 1998 FY86 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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