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392720 (2012 MD15)
Classification: Inner Main-belt Asteroid          SPK-ID: 2392720
[ 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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06185892875774814 4.109e-08  
a 1.892974166871233 1.1735e-08 au
q 1.775876812742488 7.9639e-08 au
i 24.34137639917723 8.7331e-06 deg
node 131.8431710563411 1.1566e-05 deg
peri 290.7988174697912 7.6581e-05 deg
M 327.7599500948058 7.3121e-05 deg
tp 2459285.693931891283
(2021-Mar-12.19393189)		 0.00019299 TDB
period 951.2955336933439
2.60		 8.8459e-06
2.422e-08		 d
yr
n .3784312942186568 3.519e-09 deg/d
Q 2.010071520999979 1.2461e-08 au
   Orbit Determination Parameters
   # obs. used (total)      144  
   data-arc span      7136 days (19.54 yr)  
   first obs. used      2001-02-25  
   last obs. used      2020-09-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56281  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 11:31:36  

Additional Information
 Earth MOID = .848057 au 
 Jupiter MOID = 3.13497 au 
 T_jup = 3.846 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458015.5 (2017-Sep-19.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06226212076911272 4.1131e-08  
q 1.775155294948222 7.9724e-08 au
tp 2458333.850702680661
(2018-Aug-03.35070268)		 0.00019411 TDB
node 131.8592655209573 1.1571e-05 deg
peri 290.6562740144193 7.5987e-05 deg
i 24.33560391379003 8.7311e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      144  
   data-arc span      7136 days (19.54 yr)  
   first obs. used      2001-02-25  
   last obs. used      2020-09-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56281  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 11:31:36  

Additional Information
 Jupiter MOID = 3.13497 au 
 T_jup = 3.846 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.691772975485918E-15 -3.248094500954878E-15 2.926790979035542E-13 2.793919906533641E-15 1.622313546665934E-13 -7.405578860880281E-15
q -3.248094500954878E-15 6.355893318388404E-15 -1.256695921562645E-12 -3.755318199685578E-15 -5.912348332190582E-13 1.673012244929612E-14
tp 2.926790979035542E-13 -1.256695921562645E-12 3.767787616999885E-8 -5.812851267491932E-11 1.458530480311193E-8 -5.061070317126863E-11
node 2.793919906533641E-15 -3.755318199685578E-15 -5.812851267491932E-11 1.338814780384252E-10 -1.431004266388271E-10 3.19937919114484E-11
peri 1.622313546665934E-13 -5.912348332190582E-13 1.458530480311193E-8 -1.431004266388271E-10 5.774031187852385E-9 -4.835560829782557E-11
i -7.405578860880281E-15 1.673012244929612E-14 -5.061070317126863E-11 3.19937919114484E-11 -4.835560829782557E-11 7.623264022798418E-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 17.68   n/a E2021B25  

392720 (2012 MD15)          Discovered 2007-Sep-06 by Siding Spring Survey at Siding Spring
Reference: Last Updated: 2014-04-17
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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