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 ]  
79470 (1998 AE4)
Classification: Main-belt Asteroid          SPK-ID: 2079470
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1183909319563013 5.1396e-08  
a 3.011223556832106 2.024e-08 au
q 2.654721993609985 1.5449e-07 au
i 2.005734902466903 4.2658e-06 deg
node 321.2186663890396 0.00015471 deg
peri 264.6994808270413 0.00015604 deg
M 4.419966606293954 1.8541e-05 deg
tp 2458977.066917951726
(2020-May-07.56691795)
9.8358e-05 TDB
period 1908.59123807995
5.23
1.9243e-05
5.268e-08
d
yr
n .1886207967517243 1.9017e-09 deg/d
Q 3.367725120054227 2.2636e-08 au
  Orbit Determination Parameters
   # obs. used (total)      621  
   data-arc span      8234 days (22.54 yr)  
   first obs. used      1997-12-29  
   last obs. used      2020-07-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55095  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:23:09  

Additional Information
 Earth MOID = 1.64628 au 
 Jupiter MOID = 1.62717 au 
 T_jup = 3.238 
[ 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 15.4   n/a MPO432344  
diameter diameter 3.226 km 0.817 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.098   0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

79470 (1998 AE4)          Discovered 1998-Jan-02 by Spacewatch at Kitt Peak
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

[ show close-approach data ]
Alternate Designations
 1998 AE4 = 2000 QJ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-25 09:23 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin