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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1216872205252275 7.7841e-08  
a 2.539416770829273 1.3622e-08 au
q 2.23040220223191 2.0039e-07 au
i 12.94088605246298 6.1562e-06 deg
node 193.2471879047837 1.7025e-05 deg
peri 170.237676262376 2.3373e-05 deg
M 206.8335391876112 1.9073e-05 deg
tp 2459229.369567321827
(2021-Jan-14.86956732)		 8.0923e-05 TDB
period 1478.084973923651
4.05		 1.1893e-05
3.256e-08		 d
yr
n .2435583923462546 1.9598e-09 deg/d
Q 2.848431339426636 1.528e-08 au
   Orbit Determination Parameters
   # obs. used (total)      886  
   data-arc span      8248 days (22.58 yr)  
   first obs. used      1996-10-09  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60205  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 03:55:29  

Additional Information
 Earth MOID = 1.22903 au 
 Jupiter MOID = 2.61701 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 14.9   n/a MPO436015  
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 18 CATAB v2.0e-lin.ifort 2019-May-30 03:55:35 2019-May-30 03:55
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 18 CATAB v2.0e-lin.ifort 2019-May-30 03:55:35 2019-May-30 03:55

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 2019-Dec-10 03:16 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin