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227500 (2005 XE78)
Classification: Main-belt Asteroid          SPK-ID: 2227500
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1555515457180008 6.0835e-08  
a 2.608105865548083 2.4935e-08 au
q 2.202410966765894 1.5832e-07 au
i 18.44463625932895 7.4353e-06 deg
node 54.25490024488838 2.5359e-05 deg
peri 21.40965436053746 4.4323e-05 deg
M 216.9064002372497 3.6756e-05 deg
tp 2459812.010557141031
(2022-Aug-20.51055714)
0.00016172 TDB
period 1538.460147314557
4.21
2.2063e-05
6.041e-08
d
yr
n .2340002115936473 3.3558e-09 deg/d
Q 3.013800764330271 2.8814e-08 au
  Orbit Determination Parameters
   # obs. used (total)      242  
   data-arc span      6722 days (18.40 yr)  
   first obs. used      2002-01-25  
   last obs. used      2020-06-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5844  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:40:01  

Additional Information
 Earth MOID = 1.2235 au 
 Jupiter MOID = 2.35537 au 
 T_jup = 3.322 
[ show covariance matrix ]

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 16.3   n/a MPO268235  

227500 (2005 XE78)          Discovered 2005-Dec-02 by CSS at Catalina
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ 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
2119-Jun-19 20:53 00:08 Eunom 0.040804529474327 0.0407876580467245 0.0408216471501172 10.1373227293969 10.1373226954607 2495178.370190881 7.61162417747814 5082.45445350488 62.2816967968594 80.4285066004695 96628.9451763574 T 13 CATAB v2.0f-lin.ifort 2021-Apr-14 00:40:01 2021-Apr-14 00:40

Alternate Designations
 2005 XE78 = 2002 BV20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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