Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .121430685810276 4.9571e-08  
a 2.42244807883323 1.1165e-08 au
q 2.128288547280726 1.2005e-07 au
i 1.511515110173381 5.2774e-06 deg
node 340.1015746597055 0.0001882 deg
peri 82.12479753896555 0.00018958 deg
M 158.3266694171394 2.2803e-05 deg
tp 2458394.836058856366
(2018-Oct-03.33605886)
8.5931e-05 TDB
period 1377.146501056282
3.77
9.521e-06
2.607e-08
d
yr
n .261410096691875 1.8073e-09 deg/d
Q 2.716607610385735 1.2521e-08 au
  Orbit Determination Parameters
   # obs. used (total)      760  
   data-arc span      8541 days (23.38 yr)  
   first obs. used      1995-10-17  
   last obs. used      2019-03-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56303  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 01:02:37  

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] (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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
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 19 CATAB v2.0e-lin.ifort 2019-Jul-13 01:02:40 2019-Jul-13 01:02
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 19 CATAB v2.0e-lin.ifort 2019-Jul-13 01:02:40 2019-Jul-13 01:02

Alternate Designations
 1999 XF49 = 1997 EM6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Feb-19 17:22 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin