Blog Archive

Showing posts with label 421781 (2014 QG22). Show all posts
Showing posts with label 421781 (2014 QG22). Show all posts

Tuesday, November 17, 2015

421781 (2014 QG22) vs 53576 (2000 CS47)

These two asteroids are a potentially interesting couple.
I do not know if this couple is already known and if it is really a couple with a common origin.

Let's look at the JPL data, showing very similar orbital parameters:
421781 (2014 QG22)
Orbital Elements at Epoch 2457200.5 (2015-Jun-27.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)

 Element Value Uncertainty (1-sigma)   Units 
e .1415490034245739 7.6497e-08
a 2.219666740174171 5.0262e-08 AU
q 1.905475125167845 1.6225e-07 AU
i 5.547751979163497 1.1933e-05 deg
node 270.894647775993 0.00023172 deg
peri 334.1685226014454 0.00025596 deg
M 170.5342535281013 0.00011344 deg
tp 2456628.311384753553
(2013-Dec-01.81138475)
0.00037629 JED
period 1207.897517520007
3.31
4.1027e-05
1.123e-07
d
yr
n .2980385295758646 1.0123e-08 deg/d
Q 2.533858355180498 5.7376e-08 AU
 Orbit Determination Parameters
   # obs. used (total)      49  
   data-arc span      3697 days (10.12 yr)  
   first obs. used      2004-08-14  
   last obs. used      2014-09-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55494  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 13:35:22  

Additional Information
 Earth MOID = .893565 AU 
 T_jup = 3.631 

53576 (2000 CS47)
Orbital Elements at Epoch 2457200.5 (2015-Jun-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)

 Element Value Uncertainty (1-sigma)   Units 
e .1413172303277337 5.195e-08
a 2.219866104654218 1.5604e-08 AU
q 1.906160775046069 1.1284e-07 AU
i 5.548153406788004 6.1614e-06 deg
node 270.899183954788 6.9605e-05 deg
peri 334.2072656882382 7.5251e-05 deg
M 151.5995810376835 2.9164e-05 deg
tp 2456691.773809093385
(2014-Feb-03.27380909)
9.8063e-05 JED
period 1208.060256319952
3.31
1.2737e-05
3.487e-08
d
yr
n .2979983805581422 3.142e-09 deg/d
Q 2.533571434262367 1.7809e-08 AU

Orbit Determination Parameters
   # obs. used (total)      610  
   data-arc span      7436 days (20.36 yr)  
   first obs. used      1994-07-08  
   last obs. used      2014-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49974  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 16:42:10  

Additional Information
 Earth MOID = .894238 AU 
 T_jup = 3.631 

 I tried to run the Mercury simulator (BS2 integrator, timestep 1 day) with the nominal parameters, with this result (graph done with the R package)



Kind Regards,
Alessandro Odasso