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35775 (1999 JW9)
Classification: Main-belt Asteroid          SPK-ID: 2035775
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1205625746539934 7.5384e-08  
a 2.539816391139319 1.0207e-08 au
q 2.233609587875149 1.9513e-07 au
i 12.93784469999245 4.1883e-06 deg
node 193.1611574282351 1.5263e-05 deg
peri 170.1028926084605 2.0434e-05 deg
M 353.0463694645289 1.5541e-05 deg
tp 2459229.056897344587
(2021-Jan-14.55689734)
6.3872e-05 TDB
period 1478.433890269222
4.05
8.9123e-06
2.44e-08
d
yr
n .2435009115858702 1.4679e-09 deg/d
Q 2.846023194403489 1.1438e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1219  
   data-arc span      8868 days (24.28 yr)  
   first obs. used      1996-10-09  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54658  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 04:00:32  

Additional Information
 Earth MOID = 1.23151 au 
 Jupiter MOID = 2.62389 au 
 T_jup = 3.401 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457697.5 (2016-Nov-05.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1218108940861368 7.5261e-08  
q 2.230534167714575 1.9498e-07 au
tp 2457752.393176702177
(2016-Dec-29.89317670)
6.1877e-05 TDB
node 193.2510516656212 1.5259e-05 deg
peri 170.4967455660402 2.0369e-05 deg
i 12.94158248427266 4.1878e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1219  
   data-arc span      8868 days (24.28 yr)  
   first obs. used      1996-10-09  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54658  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 04:00:32  

Additional Information
 Jupiter MOID = 2.62389 au 
 T_jup = 3.401 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.664166429564148E-15 -1.466140728236493E-14 -2.438952764173292E-12 -3.990914601584342E-14 -2.481500426043821E-13 -2.360494386029936E-14
q -1.466140728236493E-14 3.801794892128001E-14 6.275237243143333E-12 1.038334138210682E-13 6.314871119570389E-13 6.148080643871786E-14
tp -2.438952764173292E-12 6.275237243143333E-12 3.828797755092691E-9 2.197253590146295E-11 8.085341771293736E-10 1.499451471082464E-11
node -3.990914601584342E-14 1.038334138210682E-13 2.197253590146295E-11 2.328363157954801E-10 -2.234282796302414E-10 -2.2337097929964E-11
peri -2.481500426043821E-13 6.314871119570389E-13 8.085341771293736E-10 -2.234282796302414E-10 4.149041350687931E-10 2.42332855072716E-11
i -2.360494386029936E-14 6.148080643871786E-14 1.499451471082464E-11 -2.2337097929964E-11 2.42332855072716E-11 1.753753009662213E-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 15.01   n/a E2021B10  
diameter diameter 3.160 km 0.443 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.213   0.094 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

35775 (1999 JW9)          Discovered 1999-May-08 by CSS at Catalina
Reference: 20020227/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 JW9 = 2000 RV18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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