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136618 (1994 CN2)
Classification: Apollo [NEO, PHA]          SPK-ID: 2136618
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 159 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3949469530807337 6.0155e-07  
a 1.572945093727023 2.2048e-08 au
q .951715221596246 9.5854e-07 au
i 1.43926844880874 4.1811e-06 deg
node 99.33814202033153 0.00063488 deg
peri 248.2564183350115 0.00063454 deg
M 260.8198321305178 0.00025324 deg
tp 2459199.013986032909
(2020-Dec-15.51398603)
0.00050682 TDB
period 720.5577133716178
1.97
1.515e-05
4.148e-08
d
yr
n .4996129988193395 1.0505e-08 deg/d
Q 2.194174965857799 3.0756e-08 au
  Orbit Determination Parameters
   # obs. used (total)      719  
   data-arc span      9545 days (26.13 yr)  
   first obs. used      1994-02-15  
   last obs. used      2020-04-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .60888  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Apr-05 06:26:10  

Additional Information
 Earth MOID = .0125519 au 
 Jupiter MOID = 3.23346 au 
 T_jup = 4.318 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456258.5 (2012-Nov-27.0) TDB
Reference: JPL 159 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3948135429800802 6.0226e-07  
q .9520983810270987 9.5948e-07 au
tp 2456316.328711614681
(2013-Jan-23.82871161)
0.00051046 TDB
node 99.33849067144577 0.00063489 deg
peri 248.2345725332114 0.00063457 deg
i 1.438970826378196 4.1707e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      719  
   data-arc span      9545 days (26.13 yr)  
   first obs. used      1994-02-15  
   last obs. used      2020-04-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .60888  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Apr-05 06:26:10  

Additional Information
 Jupiter MOID = 3.23346 au 
 T_jup = 4.318 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.627160845094077E-13 -5.778462497747325E-13 -4.51159550428213E-11 -2.243976349580118E-13 -2.268949548358049E-12 2.187193658152261E-13
q -5.778462497747325E-13 9.206067025902755E-13 6.957289981857818E-11 -1.230325975347274E-14 3.420141622329288E-12 -3.515336228084703E-13
tp -4.51159550428213E-11 6.957289981857818E-11 2.605734146232146E-7 3.175748801957667E-8 3.10206159510738E-8 2.716325188420679E-10
node -2.243976349580118E-13 -1.230325975347274E-14 3.175748801957667E-8 4.030843239167134E-7 -3.952152565562584E-7 1.740163520702501E-9
peri -2.268949548358049E-12 3.420141622329288E-12 3.10206159510738E-8 -3.952152565562584E-7 4.02678267211433E-7 -1.668074575331132E-9
i 2.187193658152261E-13 -3.515336228084703E-13 2.716325188420679E-10 1.740163520702501E-9 -1.668074575331132E-9 1.739438944954965E-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 16.7   n/a MPO436673  
rotation period rot_per 13.0 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Hasegawa, S.; Kuroda, D.; Kitazato, K.; Kasuga, T.; et al. (2018) Pub. Astron. Soc. Japan 70, A114.]

136618 (1994 CN2)          Discovered 1994-Feb-15 by Spacewatch at Kitt Peak
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

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