Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
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 ]  
818 Kapteynia (1916 YZ)
Classification: Main-belt Asteroid          SPK-ID: 2000818
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09491078811639406 4.7004e-08  
a 3.169928650569636 2.0611e-08 AU
q 2.869068224071335 1.4751e-07 AU
i 15.66349336224349 5.5894e-06 deg
node 70.83246589376856 1.9339e-05 deg
peri 293.2677628235427 3.2074e-05 deg
M 293.4329176689207 2.792e-05 deg
tp 2457381.679625317225
(2015-Dec-25.17962532)
0.00016125 JED
period 2061.449297592733
5.64
2.0105e-05
5.504e-08
d
yr
n .1746344188141768 1.7032e-09 deg/d
Q 3.470789077067938 2.2567e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1299  
   data-arc span      36278 days (99.32 yr)  
   first obs. used      1916-02-21  
   last obs. used      2015-06-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5598  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 11:36:33  

Additional Information
 Earth MOID = 1.91319 AU 
 T_jup = 3.138 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 9.2 mag n/a MPO263351  
diameter diameter 49.45 km 3.9 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 6
rotation period rot_per 16.35 h n/a LCDB (Rev. 2015-July); Warner et al., 2009 Published Reference List:
[Stephens, R.D. (2002) Minor Planet Bul. 29, 72-73.]
[Behrend, R. (2002) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.1655   0.029 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 6

818 Kapteynia (1916 YZ)          Discovered 1916-Feb-21 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1916 YZ = 1929 JC 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2015-Aug-28 17:09 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin