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738 Alagasta (A913 AF)
Classification: Main-belt Asteroid          SPK-ID: 2000738
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 54 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05429464609367358 1.709e-08  
a 3.036657688113859 8.975e-09 au
q 2.871783433630084 4.7739e-08 au
i 3.534998298429247 3.7022e-07 deg
node 132.0942308604779 3.7468e-06 deg
peri 43.10566346486657 1.1843e-05 deg
M 83.29590103837128 1.1685e-05 deg
tp 2458753.288138614748
(2019-Sep-26.78813861)
6.1853e-05 TDB
period 1932.823441390301
5.29
8.5688e-06
2.346e-08
d
yr
n .1862560191949287 8.2573e-10 deg/d
Q 3.201531942597633 9.4623e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3581  
   data-arc span      39521 days (108.20 yr)  
   first obs. used      1913-01-07  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43798  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 18:48:55  

Additional Information
 Earth MOID = 1.87716 au 
 Jupiter MOID = 1.76003 au 
 T_jup = 3.236 
[ 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 10.05   n/a E2021B10 IRAS observations used: 23
diameter diameter 62.79 km 1.2 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 23
rotation period rot_per 17.89 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Sada, P.V.; Canizales, E.D.; Armada, E.M. (2005) Minor Planet Bull. 32, 73-75.]
[Polakis, T. (2020) Minor Planet Bull. 47, 314-321.]
geometric albedo albedo 0.0398   0.002 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 23
B-V BV 0.763   0.057 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=1.57 deg.
Tholen spectral type spec_T CGSU   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

738 Alagasta (A913 AF)          Discovered 1913-Jan-07 by Kaiser, F. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A913 AF = 1950 BX1 = A908 CA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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