Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
49777 Cappi (1999 XS)
Classification: Main-belt Asteroid          SPK-ID: 2049777
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06748462062098473 7.1584e-08  
a 2.356406693973341 1.8054e-08 AU
q 2.197385482201801 1.7244e-07 AU
i 4.468122784824132 6.5205e-06 deg
node 237.6737310874972 8.2725e-05 deg
peri 341.4692923695237 9.8373e-05 deg
M 271.7109788300115 5.3304e-05 deg
tp 2457324.524612380817
(2015-Oct-29.02461238)
0.00019537 JED
period 1321.215921428129
3.62
1.5184e-05
4.157e-08
d
yr
n .2724762804938565 3.1315e-09 deg/d
Q 2.515427905744881 1.9273e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      583  
   data-arc span      8623 days (23.61 yr)  
   first obs. used      1991-09-13  
   last obs. used      2015-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5731  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 17:48:57  

Additional Information
 Earth MOID = 1.19105 AU 
 T_jup = 3.547 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.6 mag n/a MPO337656  
rotation period rot_per 5.9389 h n/a LCDB (Rev. 2015-July); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J., in press.]

49777 Cappi           Discovered 1999 Dec. 2 by P. G. Comba at Prescott.
Margaret Capitola Sonntag Comba (b. 1940) is the discoverer's second wife and the joy and comfort of his old age. She is a psychologist and art therapist by profession and a faculty member at Prescott College.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040504/MPCPages.arcLast Updated: 2004-05-11

[ show close-approach data ]
Alternate Designations
 1999 XS = 2001 KD31 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2015-Sep-01 16:10 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin