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(2012 XE55)
Classification: Outer Main-belt Asteroid          SPK-ID: 3620463
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456270.5 (2012-Dec-09.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6026403568347102 0.0020331  
a 3.3395891234281 0.018833 au
q 1.327017942404073 0.00069429 au
i 30.50702867834818 0.053447 deg
node 80.08008295067587 0.003713 deg
peri 17.84010656694078 0.014818 deg
M 355.5418447951552 0.040019 deg
tp 2456298.105185308634
(2013-Jan-05.60518531)
0.014948 TDB
period 2229.143278885488
6.10
18.857
0.05163
d
yr
n .1614970214835138 0.0013661 deg/d
Q 5.352160304452128 0.030183 au
  Orbit Determination Parameters
   # obs. used (total)      82  
   data-arc span      15 days  
   first obs. used      2012-12-06  
   last obs. used      2012-12-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      8  
   norm. resid. RMS      .35824  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 07:19:34  

Additional Information
 Earth MOID = .358803 au 
 Jupiter MOID = .266293 au 
 T_jup = 2.660 
[ show covariance matrix ]

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 19.8   n/a MPO247319  

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2012-Dec-17 06:54 00:08 Earth 0.369395118687611 0.367231540030041 0.371558697089502 16.5590108863952 16.558575281727 2456278.787691513 8.02544680725419 107887.827224579 2210.6473323912 -0.528238300695209 427.069504599076 T 4 CATAB v2.0g-lin.ifort 2021-Apr-15 07:19:34 2021-Apr-15 07:19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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