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2982 Muriel (1981 JA3)
Classification: Main-belt Asteroid          SPK-ID: 2002982
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06394729077632995 3.3062e-08  
a 2.998610484213699 1.5902e-08 au
q 2.806857467654734 1.0507e-07 au
i 10.23457409303391 4.7533e-06 deg
node 42.81564482284989 2.1779e-05 deg
peri 40.67277806246859 4.5682e-05 deg
M 324.773846133955 3.9744e-05 deg
tp 2459186.084301441139
(2020-Dec-02.58430144)
0.00020957 TDB
period 1896.61206763789
5.19
1.5087e-05
4.131e-08
d
yr
n .1898121424737939 1.5099e-09 deg/d
Q 3.190363500772664 1.6919e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2389  
   data-arc span      17132 days (46.90 yr)  
   first obs. used      1973-12-20  
   last obs. used      2020-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42878  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:09:24  

Additional Information
 Earth MOID = 1.83059 au 
 Jupiter MOID = 2.02763 au 
 T_jup = 3.226 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457009.5 (2014-Dec-18.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06053866520085169 3.2852e-08  
q 2.817904277101942 1.0402e-07 au
tp 2457281.618106665674
(2015-Sep-16.11810667)
0.00022222 TDB
node 42.87262725466128 2.1808e-05 deg
peri 39.42010993260784 4.7996e-05 deg
i 10.22810852368915 4.7523e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2389  
   data-arc span      17132 days (46.90 yr)  
   first obs. used      1973-12-20  
   last obs. used      2020-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42878  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:09:24  

Additional Information
 Jupiter MOID = 2.02763 au 
 T_jup = 3.226 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.079227029650411E-15 -3.385343968809118E-15 -1.22504667845108E-12 4.856358295657005E-15 -2.121418890531818E-13 -1.71123143140854E-15
q -3.385343968809118E-15 1.082060331563548E-14 3.844065161323078E-12 -1.678079337013388E-14 6.597118102815443E-13 6.486936567281235E-15
tp -1.22504667845108E-12 3.844065161323078E-12 4.938137026574192E-8 1.278330493106741E-11 9.517717386208003E-9 2.987738221979565E-12
node 4.856358295657005E-15 -1.678079337013388E-14 1.278330493106741E-11 4.755959605734258E-10 -4.652391808934672E-10 -3.837238675156644E-11
peri -2.121418890531818E-13 6.597118102815443E-13 9.517717386208003E-9 -4.652391808934672E-10 2.30359943453408E-9 3.827798056656792E-11
i -1.71123143140854E-15 6.486936567281235E-15 2.987738221979565E-12 -3.837238675156644E-11 3.827798056656792E-11 2.258446093395471E-11

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 11.8   n/a MPO502181  
diameter diameter 15.229 km 0.269 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.132   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

2982 Muriel (1981 JA3)          Discovered 1981-May-06 by Shoemaker, C. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1981 JA3 = 1973 YP = 1978 SY5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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