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JPL Small-Body Database Browser
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730 Athanasia (A912 GG)
Classification: Main-belt Asteroid          SPK-ID: 2000730
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1778041299645927 3.3258e-08  
a 2.243962922726563 6.8195e-09 au
q 1.844977047578362 7.6074e-08 au
i 4.234750995884641 3.1718e-06 deg
node 95.07342290217331 5.0842e-05 deg
peri 123.5976748447296 5.1913e-05 deg
M 52.39329906140001 1.2033e-05 deg
tp 2458821.812082735230
(2019-Dec-04.31208274)
4.0735e-05 TDB
period 1227.783922137278
3.36
5.5969e-06
1.532e-08
d
yr
n .2932112023207848 1.3366e-09 deg/d
Q 2.642948797874765 8.032e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2212  
   data-arc span      39464 days (108.05 yr)  
   first obs. used      1912-04-11  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48252  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:11:42  

Additional Information
 Earth MOID = .841149 au 
 Jupiter MOID = 2.33366 au 
 T_jup = 3.608 
[ 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 13.7   n/a MPO473771  
diameter diameter 4.497 km 0.734 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
rotation period rot_per 5.7348 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Pilcher, F. (2013) Minor Planet Bull. 40, 194-195.]
[Pilcher, F. (2016) Minor Planet Bull. 43, 222-224.]
geometric albedo albedo 0.289   0.123 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

730 Athanasia (A912 GG)          Discovered 1912-Apr-10 by Palisa, J. at Vienna
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 A912 GG = 2016 FP6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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