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765 Mattiaca (A917 SS)
Classification: Main-belt Asteroid          SPK-ID: 2000765
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2849625925461827 5.0286e-08  
a 2.545135531070125 8.0078e-09 au
q 1.819867111754977 1.2869e-07 au
i 5.533898382535701 4.0932e-06 deg
node 326.295123111975 4.2096e-05 deg
peri 71.87061095942369 4.2886e-05 deg
M 115.3641766078922 9.2474e-06 deg
tp 2458725.237806943633
(2019-Aug-29.73780694)
3.7995e-05 TDB
period 1483.080749423798
4.06
6.9994e-06
1.916e-08
d
yr
n .2427379629462968 1.1456e-09 deg/d
Q 3.270403950385274 1.029e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2456  
   data-arc span      39260 days (107.49 yr)  
   first obs. used      1913-09-26  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43655  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 18:51:19  

Additional Information
 Earth MOID = .835274 au 
 Jupiter MOID = 2.21079 au 
 T_jup = 3.379 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.40   n/a MPCxxxxx  
diameter diameter 7.991 km 0.962 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.4640 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Pilcher, F. (2012) Minor Planet Bull. 39, 171-173.]
geometric albedo albedo 0.303   0.096 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

765 Mattiaca (A917 SS)          Discovered 1913-Sep-26 by Kaiser, F. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A917 SS = 1939 BV = 1939 CJ1 = 1939 DO = 1958 XB1 = 1968 DB1 = A913 SG 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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