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

Significant website upgrade scheduled for September 27. More details available here.

JPL Small-Body Database Browser
Search: [ help ]  
90995 (1998 AK)
Classification: Main-belt Asteroid          SPK-ID: 2090995
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1459501562610362 2.5757e-08  
a 2.392013472048098 6.8617e-09 au
q 2.042898732024174 6.1693e-08 au
i 1.270635570797675 3.0419e-06 deg
node 274.729276236947 0.00016336 deg
peri 210.0031731159412 0.00016388 deg
M 114.6068806699827 1.322e-05 deg
tp 2458966.318182326399
(2020-Apr-26.81818233)
4.9083e-05 TDB
period 1351.275363723061
3.70
5.8144e-06
1.592e-08
d
yr
n .2664149807394702 1.1464e-09 deg/d
Q 2.741128212072022 7.8632e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1445  
   data-arc span      8614 days (23.58 yr)  
   first obs. used      1998-01-02  
   last obs. used      2021-08-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51765  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 18:16:58  

Additional Information
 Earth MOID = 1.05902 au 
 Jupiter MOID = 2.319 au 
 T_jup = 3.516 
[ 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 15.09   n/a MPO637237  

90995 (1998 AK)          Discovered 1998-Jan-02 by Shimizu, Y., Urata, T. at Nachi-Katsuura
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Sep-24 19:02 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin