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 ]  
5745 (1991 AN)
Classification: Main-belt Asteroid          SPK-ID: 2005745
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1591253253670004 4.944e-08  
a 2.191009133788126 1.0467e-08 au
q 1.84236409249202 1.1006e-07 au
i 4.886495348788638 5.4797e-06 deg
node 23.22698516727678 5.3781e-05 deg
peri 28.07480750223521 5.725e-05 deg
M 2.792126989075348 2.1465e-05 deg
tp 2457591.312499520583
(2016-Jul-21.81249952)
7.0585e-05 JED
period 1184.580853783183
3.24
8.489e-06
2.324e-08
d
yr
n .3039049625445759 2.1778e-09 deg/d
Q 2.539654175084231 1.2133e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1126  
   data-arc span      31652 days (86.66 yr)  
   first obs. used      1928-10-15  
   last obs. used      2015-06-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51879  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 11:52:21  

Additional Information
 Earth MOID = .852791 au 
 Jupiter MOID = 2.82668 au 
 T_jup = 3.651 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.8 mag n/a MPO247419  

5745 (1991 AN)          Discovered 1991-Jan-09 by Hioki and Hayakawa at Okutama
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1991 AN = 1928 TE = 1980 TC15 = 1983 RB9 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2016-May-06 18:45 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin