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 ]  
85429 (1997 AJ18)
Classification: Main-belt Asteroid          SPK-ID: 2085429
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05716635781386539 8.0402e-08  
a 2.965922403468121 3.7164e-08 au
q 2.796371422103303 2.4624e-07 au
i 9.815863530498454 7.3964e-06 deg
node 271.6315974699478 6.9156e-05 deg
peri 13.89918229996979 0.00014787 deg
M 43.077939865384 0.00012892 deg
tp 2458777.250482692570
(2019-Oct-20.75048269)
0.00066937 TDB
period 1865.684071286273
5.11
3.5067e-05
9.601e-08
d
yr
n .1929587144686305 3.6268e-09 deg/d
Q 3.135473384832939 3.9289e-08 au
  Orbit Determination Parameters
   # obs. used (total)      408  
   data-arc span      8597 days (23.54 yr)  
   first obs. used      1997-01-15  
   last obs. used      2020-07-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5204  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 07:55:56  

Additional Information
 Earth MOID = 1.78094 au 
 Jupiter MOID = 1.98267 au 
 T_jup = 3.240 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.9   n/a MPO351440  
diameter diameter 3.467 km 0.564 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.212   0.042 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85429 (1997 AJ18)          Discovered 1997-Jan-15 by Klet at Klet
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1997 AJ18 = 2002 AU54 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Sep-19 06:00 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin