Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
35775 (1999 JW9)
Classification: Main-belt Asteroid          SPK-ID: 2035775
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

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.


[ revert to old Java-based viewer ]

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 
[ 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 15.0   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

[ 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
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 21 CATAB v2.0f-lin.ifort 2020-Jun-23 20:33:07 2020-Jun-23 20:33
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 21 CATAB v2.0f-lin.ifort 2020-Jun-23 20:33:07 2020-Jun-23 20:33

Alternate Designations
 1999 JW9 = 2000 RV18 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Aug-03 15:44 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin