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24208 Stelguerrero (1999 XC51)
Classification: Main-belt Asteroid          SPK-ID: 2024208
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1382365545461071 3.3796e-08  
a 2.721118010163583 1.0821e-08 au
q 2.34496003192521 8.9731e-08 au
i 1.591017095198139 4.1887e-06 deg
node 198.2738903528955 0.00011999 deg
peri 309.4758212404926 0.00012087 deg
M 222.1288949727875 1.4853e-05 deg
tp 2460024.399659755962
(2023-Mar-20.89965976)
6.8824e-05 TDB
period 1639.530469183739
4.49
9.7799e-06
2.678e-08
d
yr
n .2195750593029421 1.3098e-09 deg/d
Q 3.097275988401955 1.2317e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1521  
   data-arc span      10425 days (28.54 yr)  
   first obs. used      1992-04-05  
   last obs. used      2020-10-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51788  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:58:03  

Additional Information
 Earth MOID = 1.35762 au 
 Jupiter MOID = 1.90855 au 
 T_jup = 3.344 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457198.5 (2015-Jun-25.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1362047667192505 3.3271e-08  
q 2.351498853517756 8.7965e-08 au
tp 2456736.138399939536
(2014-Mar-19.63839994)
6.6482e-05 TDB
node 198.6398244585685 0.00012024 deg
peri 307.9235999413655 0.00012117 deg
i 1.58811339052145 4.1865e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1521  
   data-arc span      10425 days (28.54 yr)  
   first obs. used      1992-04-05  
   last obs. used      2020-10-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51788  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:58:03  

Additional Information
 Jupiter MOID = 1.90855 au 
 T_jup = 3.344 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.106978589327495E-15 -2.911929649238203E-15 5.708554417367386E-13 3.211727403184063E-15 1.225357237352245E-13 1.130922097876662E-16
q -2.911929649238203E-15 7.737803642613714E-15 -1.481725047040001E-12 -8.359195210875156E-15 -3.128460790882645E-13 -2.560277131836647E-16
tp 5.708554417367386E-13 -1.481725047040001E-12 4.419850983597153E-9 -4.264948425471119E-13 1.005542359736782E-9 3.680496650837861E-13
node 3.211727403184063E-15 -8.359195210875156E-15 -4.264948425471119E-13 1.445656555265901E-8 -1.445075621643133E-8 2.583219387694438E-11
peri 1.225357237352245E-13 -3.128460790882645E-13 1.005542359736782E-9 -1.445075621643133E-8 1.468096146914653E-8 -2.573302285678477E-11
i 1.130922097876662E-16 -2.560277131836647E-16 3.680496650837861E-13 2.583219387694438E-11 -2.573302285678477E-11 1.752681163463189E-11

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 14.33   n/a E2021B10  
diameter diameter 3.970 km 0.226 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.257   0.063 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

24208 Stelguerrero           Discovered 1999 Dec. 7 by the Lincoln Laboratory Near-Earth Asteroid Research Team in Socorro.
Stella Guerrero mentored a finalist in the 2008 Intel Science Talent Search (STS), a science competition for high school seniors. She teaches at the Cedar Shoals High School, Athens, Georgia.
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

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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