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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1782037915409863 1.4812e-08  
a 2.242680558414087 5.4538e-09 au
q 1.84302637968944 3.3347e-08 au
i 4.234316004806551 8.56e-07 deg
node 95.06271133892329 6.015e-06 deg
peri 123.4163268825013 6.8673e-06 deg
M 168.738592624578 4.6391e-06 deg
tp 2458821.508432070362
(2019-Dec-04.00843207)
1.5281e-05 TDB
period 1226.73160440073
3.36
4.4748e-06
1.225e-08
d
yr
n .2934627254311781 1.0705e-09 deg/d
Q 2.642334737138734 6.4256e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2734  
   data-arc span      39730 days (108.77 yr)  
   first obs. used      1912-04-11  
   last obs. used      2021-01-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45568  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 11:29:19  

Additional Information
 Earth MOID = .839818 au 
 Jupiter MOID = 2.3318 au 
 T_jup = 3.609 
[ 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 13.76   n/a E2021B10  
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. 2020-October); 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

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