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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2333343665303725 3.79e-08  
a 3.146396434099883 1.2736e-08 au
q 2.412234015295764 1.1956e-07 au
i 12.53914685997064 4.2167e-06 deg
node 331.5472835443814 2.1177e-05 deg
peri 200.5629191390647 2.3185e-05 deg
M 176.7692386022201 1.1146e-05 deg
tp 2457999.526040930448
(2017-Sep-03.02604093)
6.0862e-05 TDB
period 2038.536954248741
5.58
1.2377e-05
3.389e-08
d
yr
n .1765972401185488 1.0722e-09 deg/d
Q 3.880558852904002 1.5708e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2392  
   data-arc span      38816 days (106.27 yr)  
   first obs. used      1913-08-28  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46869  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 20:48:22  

Additional Information
 Earth MOID = 1.42306 au 
 Jupiter MOID = 1.15312 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 7.9   n/a MPO502160 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. 2019-August); 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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