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71043 (1999 XB78)
Classification: Main-belt Asteroid          SPK-ID: 2071043
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2414830005448097 5.2835e-08  
a 2.633888826343615 1.2708e-08 au
q 1.997849449456712 1.3676e-07 au
i 4.306572495136672 5.6496e-06 deg
node 256.6650285961532 7.207e-05 deg
peri 160.7482489426361 7.2743e-05 deg
M 293.244818373494 1.0402e-05 deg
tp 2459290.018998515322
(2021-Mar-16.51899852)
4.5964e-05 TDB
period 1561.329576611192
4.27
1.13e-05
3.094e-08
d
yr
n .2305727153272575 1.6687e-09 deg/d
Q 3.269928203230518 1.5777e-08 au
  Orbit Determination Parameters
   # obs. used (total)      842  
   data-arc span      13683 days (37.46 yr)  
   first obs. used      1982-12-23  
   last obs. used      2020-06-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52651  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:37:58  

Additional Information
 Earth MOID = 1.01068 au 
 Jupiter MOID = 2.0907 au 
 T_jup = 3.352 
[ 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 14.9   n/a MPO296644  

71043 (1999 XB78)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 XB78 = 1982 YL4 = 1992 DR8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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