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27258 Chelseavoss (1999 XF49)
Classification: Main-belt Asteroid          SPK-ID: 2027258
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .12143074001236 4.9268e-08  
a 2.422448081813869 1.066e-08 au
q 2.128288418597689 1.196e-07 au
i 1.511514135606452 4.8908e-06 deg
node 340.1016879922624 0.00018572 deg
peri 82.12468615283204 0.0001868 deg
M 158.3266675531098 2.1482e-05 deg
tp 2458394.836064869202
(2018-Oct-03.33606487)
8.0334e-05 TDB
period 1377.146503597994
3.77
9.0904e-06
2.489e-08
d
yr
n .261410096209407 1.7255e-09 deg/d
Q 2.716607745030049 1.1955e-08 au
  Orbit Determination Parameters
   # obs. used (total)      797  
   data-arc span      8959 days (24.53 yr)  
   first obs. used      1995-10-17  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55774  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 06:09:36  

Additional Information
 Earth MOID = 1.14187 au 
 Jupiter MOID = 2.56077 au 
 T_jup = 3.502 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456866.5 (2014-Jul-28.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1203208234690963 4.903e-08  
q 2.131436490810031 1.1881e-07 au
tp 2457018.210508083591
(2014-Dec-26.71050808)
7.7885e-05 TDB
node 340.1487569970059 0.00018543 deg
peri 82.39290150948756 0.00018653 deg
i 1.51321020895293 4.8895e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      797  
   data-arc span      8959 days (24.53 yr)  
   first obs. used      1995-10-17  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55774  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 06:09:36  

Additional Information
 Jupiter MOID = 2.56077 au 
 T_jup = 3.502 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.40394459790652E-15 -5.806861311462535E-15 -1.654337729369393E-12 -2.485082834667627E-14 -4.635692570065798E-13 -1.051055001254982E-15
q -5.806861311462535E-15 1.411505426752833E-14 4.243842237762545E-12 6.127942114106879E-14 1.17860242325129E-12 2.620570405198808E-15
tp -1.654337729369393E-12 4.243842237762545E-12 6.066013316712774E-9 2.863730483189273E-11 1.603737291082111E-9 1.128389752187033E-12
node -2.485082834667627E-14 6.127942114106879E-14 2.863730483189273E-11 3.438459021070003E-8 -3.436441855963603E-8 3.948362078852332E-10
peri -4.635692570065798E-13 1.17860242325129E-12 1.603737291082111E-9 -3.436441855963603E-8 3.479496591624453E-8 -3.943836083008963E-10
i -1.051055001254982E-15 2.620570405198808E-15 1.128389752187033E-12 3.948362078852332E-10 -3.943836083008963E-10 2.390764157302601E-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 16.1   n/a MPO324560  
diameter diameter 2.552 km 0.273 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.108   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27258 Chelseavoss           Discovered 1999 Dec. 7 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Chelsea Sierra Voss (b. 1994) was a finalist in the 2010 Intel Science Talent Search, a science competition for high-school seniors, for her bioinformatics and genomics project. She attends the Cupertino High School, Cupertino, California, U.S.A.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20110319/MPCPages.arcLast Updated: 2011-03-23

[ show close-approach data ]
Alternate Designations
 1999 XF49 = 1997 EM6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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