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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1778041515708811 2.4867e-08  
a 2.243962919199165 5.7121e-09 au
q 1.84497699619444 5.4941e-08 au
i 4.234749371522605 3.0296e-06 deg
node 95.0734880668216 4.3254e-05 deg
peri 123.5976072555418 4.4409e-05 deg
M 52.39330467527832 1.0647e-05 deg
tp 2458821.812064010370
(2019-Dec-04.31206401)
3.6199e-05 TDB
period 1227.783919242255
3.36
4.688e-06
1.284e-08
d
yr
n .293211203012155 1.1196e-09 deg/d
Q 2.642948842203891 6.7277e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2598  
   data-arc span      39649 days (108.55 yr)  
   first obs. used      1912-04-11  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45515  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:26:24  

Additional Information
 Earth MOID = .841149 au 
 Jupiter MOID = 2.33366 au 
 T_jup = 3.608 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457025.5 (2015-Jan-03.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1778773193164375 2.4845e-08  
q 1.844036686000037 5.4848e-08 au
tp 2457594.037129375521
(2016-Jul-24.53712938)
3.5695e-05 TDB
node 95.09949466794724 4.3252e-05 deg
peri 123.5162074729741 4.4408e-05 deg
i 4.235337976882904 3.03e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2598  
   data-arc span      39649 days (108.55 yr)  
   first obs. used      1912-04-11  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45515  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:26:24  

Additional Information
 Jupiter MOID = 2.33366 au 
 T_jup = 3.608 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.172732541891014E-16 -1.357951509084339E-15 -1.569303435011369E-13 3.853649542035142E-15 -5.813490883350984E-14 6.262375480651401E-17
q -1.357951509084339E-15 3.008291449740239E-15 3.576546236938774E-13 -8.245229054730556E-15 1.28593673429567E-13 -9.68284360389131E-17
tp -1.569303435011369E-13 3.576546236938774E-13 1.274101899213243E-9 1.73534150540847E-12 3.684837450393477E-10 5.267020746992458E-13
node 3.853649542035142E-15 -8.245229054730556E-15 1.73534150540847E-12 1.870750794495522E-9 -1.864921219381512E-9 3.146073123499962E-11
peri -5.813490883350984E-14 1.28593673429567E-13 3.684837450393477E-10 -1.864921219381512E-9 1.972057739010105E-9 -3.124431225028803E-11
i 6.262375480651401E-17 -9.68284360389131E-17 5.267020746992458E-13 3.146073123499962E-11 -3.124431225028803E-11 9.180871185051513E-12

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

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