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

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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 67 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1530678865500728 1.9164e-08  
a 2.874912611296804 7.754e-09 au
q 2.434855813869451 5.351e-08 au
i 3.55478580874522 1.1305e-06 deg
node 172.1523521177265 1.2925e-05 deg
peri 252.8413271381405 1.4124e-05 deg
M 182.7715115386502 7.4437e-06 deg
tp 2460273.029287116089
(2023-Nov-24.52928712)
3.9018e-05 TDB
period 1780.47302722783
4.87
7.2033e-06
1.972e-08
d
yr
n .2021934589823663 8.1802e-10 deg/d
Q 3.314969408724156 8.9409e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3915  
   data-arc span      46859 days (128.29 yr)  
   first obs. used      1893-03-10  
   last obs. used      2021-06-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44021  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 10:56:21  

Additional Information
 Earth MOID = 1.45092 au 
 Jupiter MOID = 2.00527 au 
 T_jup = 3.276 
[ 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 9.20   n/a MPCxxxxx  
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. 2020-October); 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

Alternate Designations
 A893 EC = 1949 OG1 = A901 XA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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