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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 ]

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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet is not working, here are some notes that might help.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).

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
8.0334e-05 TDB
period 1377.146503597994
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 
[ 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 16.1   n/a MPO324560  
diameter diameter 2.552 km 0.273 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
geometric albedo albedo 0.108   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1904-Dec-15 11:26 00:01 Juno 0.0425131677531208 0.042511567650243 0.0425147739854148 5.69236057592642 5.69236052565397 2416829.976116970 1.13006673519137 1050.03261851373 51.129923765374 86.6421809500528 124111.74536447 T 21 CATAB v2.0f-lin.ifort 2020-May-20 06:09:42 2020-May-20 06:09
2044-Jul-11 18:19 < 00:01 Juno 0.0345141499107405 0.0345081633270204 0.0345201369829682 5.52564971145286 5.52564964766097 2467808.263012047 0.442933440109803 363.694757966619 53.0157866230268 -35.306135400089 57435.0055071087 T 21 CATAB v2.0f-lin.ifort 2020-May-20 06:09:42 2020-May-20 06:09

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