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190435 (1999 XN146)
Classification: Main-belt Asteroid          SPK-ID: 2190435
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07612554481251911 4.5262e-08  
a 2.930358022757346 1.806e-08 au
q 2.707282921779207 1.3577e-07 au
i 3.175900686209548 4.2215e-06 deg
node 77.30577758908252 8.1254e-05 deg
peri 70.31954176168372 8.6452e-05 deg
M 352.4601437426556 2.9734e-05 deg
tp 2459238.874260480805
(2021-Jan-24.37426048)
0.00015142 TDB
period 1832.227737714905
5.02
1.6938e-05
4.637e-08
d
yr
n .1964821253328368 1.8164e-09 deg/d
Q 3.153433123735486 1.9435e-08 au
  Orbit Determination Parameters
   # obs. used (total)      797  
   data-arc span      10861 days (29.74 yr)  
   first obs. used      1991-04-18  
   last obs. used      2021-01-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53739  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 12:02:40  

Additional Information
 Earth MOID = 1.72081 au 
 Jupiter MOID = 1.84227 au 
 T_jup = 3.270 
[ 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 15.08   n/a E2021B55  

190435 (1999 XN146)          Discovered 1999-Dec-07 by Spacewatch at Kitt Peak
Reference: 20080917/Numbers.arcLast Updated: 2008-09-19

[ show close-approach data ]
Alternate Designations
 1999 XN146 = 2001 DB31 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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