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760 Massinga (A913 QD)
Classification: Main-belt Asteroid          SPK-ID: 2000760
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 56 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2335004667575399 2.2718e-08  
a 3.146444317187858 1.1653e-08 au
q 2.411748100497884 7.4221e-08 au
i 12.53950834341748 1.5339e-06 deg
node 331.5481014309876 8.699e-06 deg
peri 200.4836134352215 9.9646e-06 deg
M 246.8297909181674 9.6878e-06 deg
tp 2460037.352554763899
(2023-Apr-02.85255476)
5.7122e-05 TDB
period 2038.583489301333
5.58
1.1325e-05
3.101e-08
d
yr
n .1765932089067296 9.8101e-10 deg/d
Q 3.881140533877832 1.4374e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3104  
   data-arc span      39427 days (107.95 yr)  
   first obs. used      1913-08-28  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41751  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 06:58:49  

Additional Information
 Earth MOID = 1.42336 au 
 Jupiter MOID = 1.15103 au 
 T_jup = 3.130 
[ 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 7.93   n/a E2021B10 IRAS observations used: 9
diameter diameter 71.29 km 1.9 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 9
rotation period rot_per 10.72 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Koff, R.A. (2000) Minor Planet Bull. 27, 26-27.]
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.2276   0.012 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 9
B-V BV 0.947   0.054 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=6.56, mean=7.77, max.=8.98) deg.
U-B UB 0.557   0.038 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=6.56, mean=7.77, max.=8.98) deg.
Tholen spectral type spec_T SU   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

760 Massinga (A913 QD)          Discovered 1913-Aug-28 by Kaiser, F. at Heidelberg
Independent discovery earlier the same night by G. Neujmin, Simeis.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A913 QD = 1941 SL2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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