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 ]  
79704 (1998 SF90)
Classification: Main-belt Asteroid          SPK-ID: 2079704
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09436372731269187 3.5565e-08  
a 2.393358178599322 1.1246e-08 au
q 2.167511980072375 8.7183e-08 au
i 5.816643656959937 5.1895e-06 deg
node 326.5647706265055 3.9819e-05 deg
peri 289.885402439809 4.969e-05 deg
M 46.88099303542226 3.0099e-05 deg
tp 2458824.381784914973
(2019-Dec-06.88178491)
0.00011294 TDB
period 1352.414983673745
3.70
9.532e-06
2.61e-08
d
yr
n .2661904846854655 1.8762e-09 deg/d
Q 2.619204377126269 1.2307e-08 au
  Orbit Determination Parameters
   # obs. used (total)      974  
   data-arc span      7990 days (21.88 yr)  
   first obs. used      1998-09-15  
   last obs. used      2020-07-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52405  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 07:36:00  

Additional Information
 Earth MOID = 1.16081 au 
 Jupiter MOID = 2.4462 au 
 T_jup = 3.517 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.3   n/a MPO432346  
rotation period rot_per 6.40 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]

79704 (1998 SF90)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

Alternate Designations
 1998 SF90 = 2002 TX282 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-30 11:04 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin