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 ]  
39923 (1998 FT57)
Classification: Main-belt Asteroid          SPK-ID: 2039923
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1299918218856405 4.3083e-08  
a 2.382860773787453 1.1188e-08 au
q 2.073108360502995 1.0079e-07 au
i 7.120360814393197 5.3042e-06 deg
node 208.5205465907219 3.5031e-05 deg
peri 104.9615703442812 4.2699e-05 deg
M 151.5053844799742 2.8869e-05 deg
tp 2458035.078919663398
(2017-Oct-08.57891966)
0.00010561 TDB
period 1343.527093903927
3.68
9.4624e-06
2.591e-08
d
yr
n .2679514254929815 1.8872e-09 deg/d
Q 2.692613187071911 1.2643e-08 au
  Orbit Determination Parameters
   # obs. used (total)      984  
   data-arc span      10096 days (27.64 yr)  
   first obs. used      1991-06-10  
   last obs. used      2019-01-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58223  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:09:03  

Additional Information
 Earth MOID = 1.0726 au 
 Jupiter MOID = 2.57301 au 
 T_jup = 3.515 
[ 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 MPO468240  
diameter diameter 1.840 km 0.257 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.522   0.108 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39923 (1998 FT57)          Discovered 1998-Mar-20 by LINEAR at Socorro
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 FT57 = 1999 RM196 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-20 23:54 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin