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2745 San Martin (1976 SR10)
Classification: Main-belt Asteroid          SPK-ID: 2002745
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1899625290222879 4.0667e-08  
a 2.288526087033647 8.7179e-09 au
q 1.853791883807255 9.1643e-08 au
i 22.39852717064944 3.5939e-06 deg
node 137.7620909036138 1.1885e-05 deg
peri 303.7249114694863 1.5469e-05 deg
M 159.585089034977 1.2207e-05 deg
tp 2458439.940086647570
(2018-Nov-17.44008665)
4.1377e-05 TDB
period 1264.538999396397
3.46
7.2257e-06
1.978e-08
d
yr
n .2846887285974091 1.6267e-09 deg/d
Q 2.723260290260039 1.0374e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1707  
   data-arc span      15970 days (43.72 yr)  
   first obs. used      1976-09-25  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42123  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:49:26  

Additional Information
 Earth MOID = .938464 au 
 Jupiter MOID = 2.55848 au 
 T_jup = 3.478 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457287.5 (2015-Sep-22.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1898499032591695 4.0656e-08  
q 1.854162196755401 9.1576e-08 au
tp 2457176.380841842784
(2015-Jun-02.88084184)
3.8841e-05 TDB
node 137.7927145178378 1.188e-05 deg
peri 303.9223107006825 1.546e-05 deg
i 22.40302531953377 3.5947e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1707  
   data-arc span      15970 days (43.72 yr)  
   first obs. used      1976-09-25  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42123  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:49:26  

Additional Information
 Jupiter MOID = 2.55848 au 
 T_jup = 3.478 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.652940168926082E-15 -3.712661707982463E-15 1.522141510602991E-14 -6.784709449949024E-15 -5.380251059891214E-14 3.902113917172585E-15
q -3.712661707982463E-15 8.386171394522821E-15 3.588970559988221E-14 1.54931266943089E-14 1.386719131208708E-13 -8.957568317612427E-15
tp 1.522141510602991E-14 3.588970559988221E-14 1.508614456647624E-9 2.488376722745612E-12 4.065408125656638E-10 -5.41525211659183E-12
node -6.784709449949024E-15 1.54931266943089E-14 2.488376722745612E-12 1.411341882880452E-10 -1.288410098914709E-10 4.296942287476519E-12
peri -5.380251059891214E-14 1.386719131208708E-13 4.065408125656638E-10 -1.288410098914709E-10 2.390163730913179E-10 -5.553667384498253E-12
i 3.902113917172585E-15 -8.957568317612427E-15 -5.41525211659183E-12 4.296942287476519E-12 -5.553667384498253E-12 1.292162965508171E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.3   n/a MPO365278  
diameter diameter 5.249 km 0.211 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.336   0.063 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2745 San Martin (1976 SR10)          Discovered 1976-Sep-25 by Felix Aguilar Observatory at El Leoncito
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1976 SR10 = 1980 XG 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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