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24202 (1999 XR42)
Classification: Main-belt Asteroid          SPK-ID: 2024202
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 .2122573359472895 3.811e-08  
a 2.141215574039383 9.5148e-09 au
q 1.686726860604937 8.5875e-08 au
i 1.557157762251431 3.7343e-06 deg
node 259.4903363777697 0.00013586 deg
peri 73.4508650386112 0.00013657 deg
M 320.3115916339938 2.1512e-05 deg
tp 2459326.668284798005
(2021-Apr-22.16828480)
6.9122e-05 TDB
period 1144.429429076961
3.13
7.6281e-06
2.088e-08
d
yr
n .314567233988694 2.0967e-09 deg/d
Q 2.595704287473829 1.1534e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1185  
   data-arc span      14505 days (39.71 yr)  
   first obs. used      1980-09-08  
   last obs. used      2020-05-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5498  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:37:34  

Additional Information
 Earth MOID = .675321 au 
 Jupiter MOID = 2.76988 au 
 T_jup = 3.683 
[ 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 15.58   n/a E2021B10  

24202 (1999 XR42)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20010408/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 XR42 = 1980 RN2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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