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 ]  
40733 (1999 SM17)
Classification: Main-belt Asteroid          SPK-ID: 2040733
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .147833115551598 3.7496e-08  
a 2.417809228573336 8.6903e-09 au
q 2.060376957503935 9.1086e-08 au
i 7.50136211320344 4.0748e-06 deg
node 121.8514682346299 2.7563e-05 deg
peri 248.6634326822914 3.0281e-05 deg
M 162.4109581298481 1.2239e-05 deg
tp 2458380.995734601347
(2018-Sep-19.49573460)
4.6014e-05 TDB
period 1373.192659606186
3.76
7.4035e-06
2.027e-08
d
yr
n .2621627762729545 1.4134e-09 deg/d
Q 2.775241499642738 9.975e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1599  
   data-arc span      7987 days (21.87 yr)  
   first obs. used      1998-03-24  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51086  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 06:01:33  

Additional Information
 Earth MOID = 1.07323 au 
 Jupiter MOID = 2.70988 au 
 T_jup = 3.489 
[ 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 14.5   n/a MPO359000  
diameter diameter 2.830 km 0.533 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.461   0.144 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

40733 (1999 SM17)          Discovered 1999-Sep-30 by LINEAR at Socorro
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 SM17 = 1998 HJ111 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Feb-25 04:10 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin