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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1209912015376173 7.6391e-08  
a 2.541058042936707 1.293e-08 au
q 2.233612377144969 1.9753e-07 au
i 12.93430196475928 5.5016e-06 deg
node 193.1840751983234 1.6085e-05 deg
peri 170.003804536204 2.2187e-05 deg
M 304.4542683618245 1.8714e-05 deg
tp 2459228.780332104171
(2021-Jan-14.28033210)
7.7828e-05 TDB
period 1479.518175992848
4.05
1.1293e-05
3.092e-08
d
yr
n .2433224585148593 1.8572e-09 deg/d
Q 2.848503708728445 1.4495e-08 au
  Orbit Determination Parameters
   # obs. used (total)      949  
   data-arc span      8634 days (23.64 yr)  
   first obs. used      1996-10-09  
   last obs. used      2020-05-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59473  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 20:33:00  

Additional Information
 Earth MOID = 1.23307 au 
 Jupiter MOID = 2.62042 au 
 T_jup = 3.400 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457105.5 (2015-Mar-24.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1216262231512746 7.6291e-08  
q 2.230422267890923 1.9718e-07 au
tp 2457752.948894007281
(2016-Dec-30.44889401)
7.292e-05 TDB
node 193.2555276229605 1.6076e-05 deg
peri 170.636081990573 2.2193e-05 deg
i 12.94147628393066 5.504e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      949  
   data-arc span      8634 days (23.64 yr)  
   first obs. used      1996-10-09  
   last obs. used      2020-05-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59473  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 20:33:00  

Additional Information
 Jupiter MOID = 2.62042 au 
 T_jup = 3.400 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.820307386730492E-15 -1.502033735384933E-14 -2.326557201837006E-12 -4.624115861594591E-14 -2.203709269903546E-13 -1.793105167044143E-14
q -1.502033735384933E-14 3.887830107852177E-14 6.240460449402103E-12 1.199633387395623E-13 6.082500305852262E-13 4.718247405608296E-14
tp -2.326557201837006E-12 6.240460449402103E-12 5.317284444424087E-9 2.262122052922248E-11 1.08982922766917E-9 1.099429789308661E-11
node -4.624115861594591E-14 1.199633387395623E-13 2.262122052922248E-11 2.584310901581451E-10 -2.483186002217892E-10 -7.979439936464594E-12
peri -2.203709269903546E-13 6.082500305852262E-13 1.08982922766917E-9 -2.483186002217892E-10 4.925470375200305E-10 9.564437411265156E-12
i -1.793105167044143E-14 4.718247405608296E-14 1.099429789308661E-11 -7.979439936464594E-12 9.564437411265156E-12 3.029383128182557E-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 15.0   n/a MPO474212  
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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