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 ]  
358 Apollonia (A893 EC)
Classification: Main-belt Asteroid          SPK-ID: 2000358
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 60 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1529064601678322 2.9614e-08  
a 2.875745234360108 8.3022e-09 au
q 2.436025210229591 8.4373e-08 au
i 3.554354678233755 4.0602e-06 deg
node 172.1472338451895 5.1213e-05 deg
peri 252.9730317825133 5.2911e-05 deg
M 102.5680887488414 1.3226e-05 deg
tp 2458493.002622697682
(2019-Jan-09.50262270)
6.4978e-05 TDB
period 1781.246565646845
4.88
7.7136e-06
2.112e-08
d
yr
n .2021056528292977 8.7521e-10 deg/d
Q 3.315465258490625 9.5717e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3559  
   data-arc span      44697 days (122.37 yr)  
   first obs. used      1898-03-21  
   last obs. used      2020-08-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45474  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:14:57  

Additional Information
 Earth MOID = 1.45243 au 
 Jupiter MOID = 2.00299 au 
 T_jup = 3.276 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 9.2   n/a MPO384746  
diameter diameter 90.116 km 0.807 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 50.6 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Buchheim, R.K. (2009) Minor Planet Bull. 36, 84-85.]
geometric albedo albedo 0.050   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
SMASSII spectral type spec_B Ch   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)

358 Apollonia (A893 EC)          Discovered 1893-Mar-08 by Charlois, A. at Nice
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A893 EC = 1949 OG1 = A901 XA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-22 13:54 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin