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 ]  
504 Cora (A902 NB)
Classification: Main-belt Asteroid          SPK-ID: 2000504
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 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .215067900283145 3.9973e-08  
a 2.722657910593427 8.6065e-09 au
q 2.137101590572804 1.0918e-07 au
i 12.89775596817736 4.0783e-06 deg
node 104.4753272081367 1.918e-05 deg
peri 248.1751034245591 2.0889e-05 deg
M 322.2390997927366 9.4872e-06 deg
tp 2458772.618630471410
(2019-Oct-16.11863047)
4.3484e-05 TDB
period 1640.922399349708
4.49
7.7806e-06
2.13e-08
d
yr
n .2193888023849677 1.0403e-09 deg/d
Q 3.30821423061405 1.0458e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2777  
   data-arc span      42338 days (115.92 yr)  
   first obs. used      1903-12-29  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44359  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 20:08:09  

Additional Information
 Earth MOID = 1.16808 au 
 Jupiter MOID = 2.22241 au 
 T_jup = 3.288 
[ 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 10.0   n/a MPO435699  
diameter diameter 30.438 km 0.298 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 7.588 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Behrend, R. (2009) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Higgins, D. (2011) Minor Planet Bull. 38, 41-46.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Pilcher, F. (2018) Minor Planet Bull. 45, 356-359.]
[Polakis, T. (2018) Minor Planet Bull. 45, 347-352.]
geometric albedo albedo 0.239   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
SMASSII spectral type spec_B X   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

504 Cora (A902 NB)          Discovered 1902-Jun-30 by Bailey, S. I. at Arequipa
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A902 NB = 1947 OH 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-08 17:00 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin