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 ]  
100174 (1994 AJ2)
Classification: Main-belt Asteroid          SPK-ID: 2100174
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1184718619678531 3.9623e-08  
a 2.72457457064917 1.2936e-08 au
q 2.401789148194099 1.0782e-07 au
i 3.848471633968677 4.2666e-06 deg
node 316.2606256569364 5.7923e-05 deg
peri 27.80599749825197 6.0093e-05 deg
M 113.3600761498152 1.6053e-05 deg
tp 2458683.245707481852
(2019-Jul-18.74570748)
7.25e-05 TDB
period 1642.65543594412
4.50
1.1699e-05
3.203e-08
d
yr
n .2191573425093188 1.5608e-09 deg/d
Q 3.047359993104241 1.4468e-08 au
  Orbit Determination Parameters
   # obs. used (total)      699  
   data-arc span      9869 days (27.02 yr)  
   first obs. used      1994-01-12  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53883  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:24:37  

Additional Information
 Earth MOID = 1.39287 au 
 Jupiter MOID = 2.33128 au 
 T_jup = 3.344 
[ 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 15.58   n/a E2021B55  
diameter diameter 3.776 km 0.111 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.094   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100174 (1994 AJ2)          Discovered 1994-Jan-12 by Vagnozzi, A. at Stroncone
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1994 AJ2 = 2001 SK143 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Mar-01 16:42 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin