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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1205625750218514 7.5312e-08  
a 2.539816389727307 1.0176e-08 au
q 2.233609585699081 1.9493e-07 au
i 12.937844735462 4.1609e-06 deg
node 193.1611567835739 1.4902e-05 deg
peri 170.1028930615627 1.9972e-05 deg
M 353.0463696347715 1.5397e-05 deg
tp 2459229.056896621627
(2021-Jan-14.55689662)
6.3284e-05 TDB
period 1478.433889036318
4.05
8.8849e-06
2.433e-08
d
yr
n .243500911788932 1.4634e-09 deg/d
Q 2.846023193755533 1.1402e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1226  
   data-arc span      8868 days (24.28 yr)  
   first obs. used      1996-10-09  
   last obs. used      2021-01-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54507  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 08:11:02  

Additional Information
 Earth MOID = 1.23151 au 
 Jupiter MOID = 2.62389 au 
 T_jup = 3.401 
[ 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 15.02   n/a MPCxxxxx  
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

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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
2149-Aug-12 08:40 00:03 Hebe 0.0200580173089708 0.0200342716714988 0.0200817649738219 4.20093381332643 4.20093373954897 2506189.861016827 3.3620617820997 1225.41644766956 35.4546755485195 -15.0423014821592 22076.7609949128 T 27 CATAB v2.0f-lin.ifort 2021-Apr-13 08:11:06 2021-Apr-13 08:11
2180-Jul-09 00:16 00:02 Eunom 0.0388739749805412 0.038864414296169 0.0388835538318699 5.80754193423693 5.8075418720581 2517478.511291700 2.2233135024048 1412.93187676572 43.1060501643686 70.3443616604588 126992.223749928 T 27 CATAB v2.0f-lin.ifort 2021-Apr-13 08:11:06 2021-Apr-13 08:11

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