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(2012 KT42)
Classification: Apollo [NEO]          SPK-ID: 3605257
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5547351472872835 3.9744e-05  
a 1.597826503244404 7.0884e-05 au
q .7114559826275946 3.2538e-05 au
i 2.193149080972228 0.00039977 deg
node 69.49376258939544 6.1031e-05 deg
peri 259.1025679100927 0.0027897 deg
M 59.889850783673 0.10851 deg
tp 2459077.772019487967
(2020-Aug-16.27201949)		 0.2142 TDB
period 737.7222084576731
2.02		 0.049091
0.0001344		 d
yr
n .4879885624598965 3.2473e-05 deg/d
Q 2.484197023861214 0.00011021 au
   Orbit Determination Parameters
   # obs. used (total)      80  
   data-arc span      1 day  
   first obs. used      2012-05-28  
   last obs. used      2012-05-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .25897  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:49:40  

Additional Information
 Earth MOID = .00102593 au 
 Jupiter MOID = 2.89131 au 
 T_jup = 4.178 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456076.5 (2012-May-29.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5218341364122182 4.3517e-05  
q .6447214088945352 1.9329e-05 au
tp 2456132.865133316506
(2012-Jul-24.36513332)		 0.0021064 TDB
node 247.035949135872 6.1158e-05 deg
peri 94.62639677382656 0.00021235 deg
i .3534574070950209 3.1186e-05 deg
   Orbit Determination Parameters
   # obs. used (total)      80  
   data-arc span      1 day  
   first obs. used      2012-05-28  
   last obs. used      2012-05-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .25897  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:49:40  

Additional Information
 Jupiter MOID = 2.89131 au 
 T_jup = 4.178 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.893715937503193E-9 -8.405085365898166E-10 -9.165074302175906E-8 9.811739951107776E-10 -7.515130139943657E-9 8.301968306366969E-10
q -8.405085365898166E-10 3.735989972429417E-10 4.065203284017475E-8 -4.460716933362505E-10 3.2535258793512E-9 -3.77027359702181E-10
tp -9.165074302175906E-8 4.065203284017475E-8 4.436938484000041E-6 -4.693681606719203E-8 3.676387841381706E-7 -3.973162048200882E-8
node 9.811739951107776E-10 -4.460716933362505E-10 -4.693681606719203E-8 3.740346664385945E-9 -5.297336153476523E-9 1.734520432326325E-9
peri -7.515130139943657E-9 3.2535258793512E-9 3.676387841381706E-7 -5.297336153476523E-9 4.509059793042467E-8 -3.118380405264221E-9
i 8.301968306366969E-10 -3.77027359702181E-10 -3.973162048200882E-8 1.734520432326325E-9 -3.118380405264221E-9 9.725855452813009E-10

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 29.0   n/a MPO234436  
rotation period rot_per 0.06057 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Polishook, D.; Binzel, R.P.; Lockhart, M.; DeMeo, F.E.; et al. (2012) Icarus 221, 1187-1189.]
[Elenin, L. UNPUBLISHED.]

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