Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
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 ]  
152558 (1990 SA)
Classification: Amor [NEO]          SPK-ID: 2152558
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 85 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4421310618004658 4.4447e-08  
a 2.013417865587363 6.6363e-09 AU
q 1.123223286827195 8.9445e-08 AU
i 38.11966461645784 1.5179e-05 deg
node 172.2392695819264 7.0249e-06 deg
peri 115.0750246438769 2.0725e-05 deg
M 129.4002653490001 9.4858e-06 deg
tp 2456425.413036710788
(2013-May-12.91303671)
2.729e-05 JED
period 1043.516459722311
2.86
5.1592e-06
1.413e-08
d
yr
n .3449873709666248 1.7056e-09 deg/d
Q 2.903612444347532 9.5705e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      436  
   data-arc span      8406 days (23.01 yr)  
   first obs. used      1990-09-14  
   last obs. used      2013-09-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51186  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-11 08:58:17  

Additional Information
 Earth MOID = .306985 AU 
 T_jup = 3.462 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.8 mag n/a MPO266498  
diameter diameter 1.4 km n/a Hazards due to Comets and Asteroids (1994), Ed. T. Gehrels, pp.540-543 based on assumed medium albedo (0.15)

152558 (1990 SA)          Discovered 1990-Sep-16 by McNaught, R. H. at Siding Spring (413)
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Jul-26 01:05 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin