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 ]  
5428 (1987 RA1)
Classification: Main-belt Asteroid          SPK-ID: 2005428
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03452162551112701 6.3763e-08  
a 2.907416252081278 3.0977e-08 AU
q 2.807047517021963 1.7987e-07 AU
i .9366191730799012 6.0632e-06 deg
node 270.0072664681855 0.00052849 deg
peri 14.70869456729761 0.00054839 deg
M 193.5097422432476 0.000149 deg
tp 2457637.924326059093
(2016-Sep-06.42432606)
0.00075248 JED
period 1810.753142215294
4.96
2.8939e-05
7.923e-08
d
yr
n .1988123016920861 3.1773e-09 deg/d
Q 3.007784987140592 3.2046e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      978  
   data-arc span      21637 days (59.24 yr)  
   first obs. used      1954-12-22  
   last obs. used      2014-03-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51799  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 18:12:08  

Additional Information
 Earth MOID = 1.79004 AU 
 T_jup = 3.284 
[ 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 12.6 mag n/a MPO253401  

5428 (1987 RA1)          Discovered 1987-Sep-13 by Debehogne, H. at La Silla (809)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1987 RA1 = 1976 JS4 = 1990 DV2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Jul-31 09:27 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin