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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2330159150544155 3.7992e-08  
a 3.148104568854912 1.3052e-08 au
q 2.414546102056198 1.2022e-07 au
i 12.53434695028984 4.2152e-06 deg
node 331.552142771692 2.1185e-05 deg
peri 200.7028230557516 2.3195e-05 deg
M 105.9677192421767 1.0982e-05 deg
tp 2457999.958205135894
(2017-Sep-03.45820514)
6.0975e-05 TDB
period 2040.197219466333
5.59
1.2688e-05
3.474e-08
d
yr
n .1764535293770116 1.0973e-09 deg/d
Q 3.881663035653626 1.6093e-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 = 1.42586 au 
 Jupiter MOID = 1.15389 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-January); 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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1975-Aug-21 06:38 00:01 Jupiter 1.5477440334611 1.54774243430435 1.54774563261882 2.7374214231669 2.52961473928942 2442645.776444623 1.45773514560136 120.814277267511 67.4896035807373 -41.2249662136592 1912891.74233291 T 44 CATAB v2.0f-lin.ifort 2019-Dec-13 20:48:34 2019-Dec-13 20:48
1986-Jun-16 06:49 < 00:01 Jupiter 1.15656813221279 1.15656772679166 1.15656853763439 3.15614218526612 2.91487846582392 2446597.784317876 0.529595551506517 76.4890335420071 19.6798338673617 83.4635707286652 2999212.02401778 T 44 CATAB v2.0f-lin.ifort 2019-Dec-13 20:48:34 2019-Dec-13 20:48
1997-Mar-24 04:24 < 00:01 Jupiter 1.70169039600664 1.70168968761745 1.7016911044053 3.1527961106729 2.99075510886796 2450531.683043485 0.435603365222771 302.911249543495 22.8338242805677 84.7152828756187 2846705.44893198 T 44 CATAB v2.0f-lin.ifort 2019-Dec-13 20:48:34 2019-Dec-13 20:48
2082-Mar-14 21:39 00:01 Jupiter 1.40844556567122 1.4084441453413 1.40844698600186 2.88725766852225 2.67085763076475 2481568.402202128 1.3432500319335 100.865803810168 52.6216758051965 -45.9623692959851 1796225.19481599 T 44 CATAB v2.0f-lin.ifort 2019-Dec-13 20:48:34 2019-Dec-13 20:48
2093-Feb-06 20:26 00:01 Jupiter 1.20280273424321 1.20280187598878 1.20280359250366 3.10011882751493 2.86396963352404 2485550.351141360 1.30069867555146 152.876670418485 17.7567139289943 75.3515669421953 3036211.96352821 T 44 CATAB v2.0f-lin.ifort 2019-Dec-13 20:48:34 2019-Dec-13 20:48
2103-Oct-15 07:33 00:02 Jupiter 1.85699601983043 1.85699350898361 1.85699853073004 3.29589768112881 3.15447163599902 2489451.814892909 2.2278026812075 531.392555528322 19.4202116943584 77.0762974690425 2597575.43021427 T 44 CATAB v2.0f-lin.ifort 2019-Dec-13 20:48:34 2019-Dec-13 20:48
2188-Nov-10 01:32 00:03 Jupiter 1.32374112018779 1.32373825347699 1.32374398690876 2.84985965903241 2.61571398383466 2520524.563888421 3.28170281056685 248.583704826937 45.7739647389346 -51.9218629825737 1692128.3556319 T 44 CATAB v2.0f-lin.ifort 2019-Dec-13 20:48:34 2019-Dec-13 20:48
2199-Oct-12 01:43 00:03 Jupiter 1.26964475777529 1.26964215669594 1.2696473589092 3.0411474343295 2.81323848487484 2524512.571474845 3.36937354815781 452.56118415577 15.6973527593703 74.2928735073226 2891327.27734054 T 44 CATAB v2.0f-lin.ifort 2019-Dec-13 20:48:34 2019-Dec-13 20:48

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