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6115 Martinduncan (1984 SR2)
Classification: Main-belt Asteroid          SPK-ID: 2006115
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1553168133249424 3.7541e-08  
a 2.226262464555234 7.5112e-09 au
q 1.880486472935583 8.5572e-08 au
i 4.890096525534182 3.8376e-06 deg
node 316.1223612598299 4.3133e-05 deg
peri 66.86454751316413 4.4567e-05 deg
M 251.1535424959843 1.2193e-05 deg
tp 2459367.338383729646
(2021-Jun-01.83838373)
4.1976e-05 TDB
period 1213.285403778993
3.32
6.1403e-06
1.681e-08
d
yr
n .296715017652661 1.5016e-09 deg/d
Q 2.572038456174886 8.6778e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2117  
   data-arc span      13163 days (36.04 yr)  
   first obs. used      1984-09-25  
   last obs. used      2020-10-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46427  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:38:15  

Additional Information
 Earth MOID = .889734 au 
 Jupiter MOID = 2.90507 au 
 T_jup = 3.625 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456867.5 (2014-Jul-29.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1546659894180045 3.7411e-08  
q 1.881723661762123 8.5157e-08 au
tp 2456941.041291540848
(2014-Oct-10.54129154)
3.7981e-05 TDB
node 316.187128385885 4.3083e-05 deg
peri 66.7653973358196 4.4547e-05 deg
i 4.893382769550711 3.8389e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2117  
   data-arc span      13163 days (36.04 yr)  
   first obs. used      1984-09-25  
   last obs. used      2020-10-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46427  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:38:15  

Additional Information
 Jupiter MOID = 2.90507 au 
 T_jup = 3.625 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.399606223636227E-15 -3.177515045767741E-15 -3.987696600186031E-13 -6.750074135840533E-15 -1.201562524254721E-13 -2.189569961958751E-15
q -3.177515045767741E-15 7.251793437929382E-15 9.380385985460575E-13 1.544913272811511E-14 2.807263941486664E-13 5.116999913578383E-15
tp -3.987696600186031E-13 9.380385985460575E-13 1.442525951478601E-9 -1.522706715558494E-12 4.430118402989497E-10 6.40778622754258E-13
node -6.750074135840533E-15 1.544913272811511E-14 -1.522706715558494E-12 1.856115584761636E-9 -1.849104610616426E-9 4.512675632061144E-11
peri -1.201562524254721E-13 2.807263941486664E-13 4.430118402989497E-10 -1.849104610616426E-9 1.984417215511919E-9 -4.478197031270166E-11
i -2.189569961958751E-15 5.116999913578383E-15 6.40778622754258E-13 4.512675632061144E-11 -4.478197031270166E-11 1.473740770278939E-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 14.0   n/a MPO473851  
diameter diameter 4.936 km 0.210 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.166   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

6115 Martinduncan (1984 SR2)          Discovered 1984-Sep-25 by Skiff, B. A. at Flagstaff
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1984 SR2 = 1989 CF8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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