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43143 (1999 XA97)
Classification: Main-belt Asteroid          SPK-ID: 2043143
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04587040329357368 4.4536e-08  
a 3.099479130935367 2.0177e-08 au
q 2.957304773199346 1.3962e-07 au
i 14.19070707751286 3.5964e-06 deg
node 265.1110707781903 1.9272e-05 deg
peri 273.3751380809687 4.8376e-05 deg
M 207.8790870942788 4.6799e-05 deg
tp 2460042.705210512022
(2023-Apr-08.20521051)
0.00026222 TDB
period 1993.111071928921
5.46
1.9462e-05
5.328e-08
d
yr
n .1806221464875985 1.7637e-09 deg/d
Q 3.241653488671388 2.1103e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1260  
   data-arc span      8176 days (22.38 yr)  
   first obs. used      1998-08-24  
   last obs. used      2021-01-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46918  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:16:22  

Additional Information
 Earth MOID = 2.00081 au 
 Jupiter MOID = 1.92368 au 
 T_jup = 3.174 
[ 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 13.89   n/a E2021B10  

43143 (1999 XA97)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20020624/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 XA97 = 1998 QM89 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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