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24296 Marychristie (1999 XW212)
Classification: Main-belt Asteroid          SPK-ID: 2024296
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1268102783260757 4.2063e-08  
a 2.58738142274927 1.0748e-08 au
q 2.259274864394717 1.1248e-07 au
i 5.355228149165485 4.3224e-06 deg
node 164.3861370371676 3.4922e-05 deg
peri 182.8658809586095 3.7667e-05 deg
M 84.71813931856371 1.3462e-05 deg
tp 2458842.763693919521
(2019-Dec-25.26369392)
5.6378e-05 TDB
period 1520.159333347784
4.16
9.4718e-06
2.593e-08
d
yr
n .2368172809932935 1.4756e-09 deg/d
Q 2.915487981103822 1.211e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1203  
   data-arc span      10662 days (29.19 yr)  
   first obs. used      1991-12-03  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54668  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:39:17  

Additional Information
 Earth MOID = 1.25057 au 
 Jupiter MOID = 2.49017 au 
 T_jup = 3.404 
[ 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 15.04   n/a E2021B10  
diameter diameter 3.131 km 0.623 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.217   0.114 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

24296 Marychristie           Discovered 1999 Dec. 14 by the Lincoln Laboratory Near-Earth Asteroid Research Team in Socorro.
Mary Christie mentored a finalist in the 2008 Intel Science Talent Search (STS), a science competition for high school seniors. She teaches at the Bellevue High School, Bellevue, Washington.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080221/MPCPages.arcLast Updated: 2008-03-05

[ show close-approach data ]
Alternate Designations
 1999 XW212 = 1993 FM38 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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