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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
20182 (1997 AS)
Classification: Main-belt Asteroid          SPK-ID: 2020182
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .193118184067511 2.8486e-08  
a 2.44668226046783 8.9015e-09 au
q 1.97418342533609 6.9839e-08 au
i 5.684219847524831 3.2779e-06 deg
node 114.0060743073359 4.4777e-05 deg
peri 174.3129367385825 4.6425e-05 deg
M 134.6283565256126 1.4174e-05 deg
tp 2458077.744236128721
(2017-Nov-20.24423613)
5.3399e-05 TDB
period 1397.86356938746
3.83
7.6286e-06
2.089e-08
d
yr
n .2575358625003376 1.4054e-09 deg/d
Q 2.919181095599571 1.0621e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1613  
   data-arc span      8331 days (22.81 yr)  
   first obs. used      1997-01-02  
   last obs. used      2019-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53115  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 04:22:15  

Additional Information
 Earth MOID = .957286 au 
 Jupiter MOID = 2.25535 au 
 T_jup = 3.466 
[ 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 14.4   n/a MPO452455  
diameter diameter 4.023 km 0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.214   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20182 (1997 AS)          Discovered 1997-Jan-02 by Kobayashi, T. at Oizumi
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 AS = 1998 KL8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-22 14:12 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin