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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0647000372417329 4.3948e-08  
a 2.914728115786112 2.152e-08 au
q 2.726145098145225 1.3114e-07 au
i 12.89229851612409 5.2221e-06 deg
node 119.5017241928955 2.1344e-05 deg
peri 273.9207169016572 4.4739e-05 deg
M 219.229777073498 4.0003e-05 deg
tp 2459311.228612848880
(2021-Apr-06.72861285)
0.00020345 TDB
period 1817.588232130497
4.98
2.0129e-05
5.511e-08
d
yr
n .1980646626315488 2.1935e-09 deg/d
Q 3.103311133427 2.2912e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1097  
   data-arc span      7746 days (21.21 yr)  
   first obs. used      1998-02-24  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55939  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 03:55:57  

Additional Information
 Earth MOID = 1.77035 au 
 Jupiter MOID = 2.20311 au 
 T_jup = 3.241 
[ 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 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-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 0.064   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

[ 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
1900-Oct-21 01:01 < 00:01 Hygie 0.0123359836098801 0.0123146420271679 0.0123573397650626 5.9222760887781 5.92227555991896 2415313.542621171 0.889434464382742 1256.37852658132 40.4131620447447 -32.1676499063647 24318.6386645198 T 25 CATAB v2.0e-lin.ifort 2019-May-30 03:56:07 2019-May-30 03:56
2176-Mar-22 03:35 00:03 Psych 0.0349572445055981 0.034918804981066 0.034995689150751 3.54742180654534 3.5474217089783 2515908.649213107 3.41482598962618 2027.69257583644 37.6580694516133 19.2041208087192 45688.3817376999 T 25 CATAB v2.0e-lin.ifort 2019-May-30 03:56:07 2019-May-30 03:56

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