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 ]  
101553 (1999 AB4)
Classification: Inner Main-belt Asteroid          SPK-ID: 2101553
[ 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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08805070717849563 5.2055e-08  
a 1.909681085999452 6.8139e-09 au
q 1.741532315891803 1.0244e-07 au
i 18.69777242258438 5.2844e-06 deg
node 315.7322609005708 1.1605e-05 deg
peri 235.2393106125411 2.8649e-05 deg
M 339.6966502317813 2.6491e-05 deg
tp 2459054.863184942933
(2020-Jul-24.36318494)		 7.0979e-05 TDB
period 963.9171271181305
2.64		 5.159e-06
1.412e-08		 d
yr
n .3734760902903649 1.9989e-09 deg/d
Q 2.077829856107101 7.4139e-09 au
   Orbit Determination Parameters
   # obs. used (total)      677  
   data-arc span      7777 days (21.29 yr)  
   first obs. used      1999-01-10  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56246  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:59:53  

Additional Information
 Earth MOID = .790687 au 
 Jupiter MOID = 2.97927 au 
 T_jup = 3.868 
[ 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 16.3   n/a MPO453468  

101553 (1999 AB4)          Discovered 1999-Jan-10 by Kobayashi, T. at Oizumi
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1999 AB4 = 2000 SX232 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-28 20:45 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin