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190434 (1999 XX78)
Classification: Main-belt Asteroid          SPK-ID: 2190434
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1866295988012357 5.1153e-08  
a 2.76108098678168 1.564e-08 au
q 2.245781549960895 1.4162e-07 au
i 7.65868208590177 4.639e-06 deg
node 243.5220532787037 4.1737e-05 deg
peri 103.18129887 4.3243e-05 deg
M 274.2027480866313 1.416e-05 deg
tp 2459599.881571709153
(2022-Jan-20.38157171)
6.814e-05 TDB
period 1675.780547848667
4.59
1.4239e-05
3.898e-08
d
yr
n .2148252648368312 1.8254e-09 deg/d
Q 3.276380423602464 1.8559e-08 au
  Orbit Determination Parameters
   # obs. used (total)      628  
   data-arc span      7495 days (20.52 yr)  
   first obs. used      1999-11-09  
   last obs. used      2020-05-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52775  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 07:01:54  

Additional Information
 Earth MOID = 1.25272 au 
 Jupiter MOID = 2.23214 au 
 T_jup = 3.303 
[ 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 15.09   n/a E2021B55  

190434 (1999 XX78)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20080917/Numbers.arcLast Updated: 2008-09-19

[ show close-approach data ]
Alternate Designations
 1999 XX78 = 2002 JV125 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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