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JPL Small-Body Database Browser
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49777 Cappi (1999 XS)
Classification: Main-belt Asteroid          SPK-ID: 2049777
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06718928109323094 4.8435e-08  
a 2.355547607214982 1.0504e-08 au
q 2.197280056905327 1.1536e-07 au
i 4.46916752129721 4.6406e-06 deg
node 237.615655547846 5.3916e-05 deg
peri 342.1912267613926 6.2504e-05 deg
M 347.1578626787197 3.0576e-05 deg
tp 2458647.605439991182
(2019-Jun-13.10543999)
0.00011207 TDB
period 1320.493464022144
3.62
8.8328e-06
2.418e-08
d
yr
n .2726253554511824 1.8236e-09 deg/d
Q 2.513815157524637 1.121e-08 au
  Orbit Determination Parameters
   # obs. used (total)      843  
   data-arc span      10102 days (27.66 yr)  
   first obs. used      1991-09-13  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53399  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:41:16  

Additional Information
 Earth MOID = 1.18927 au 
 Jupiter MOID = 2.46259 au 
 T_jup = 3.548 
[ 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 15.6   n/a MPO337656  
rotation period rot_per 5.939 h n/a LCDB (Rev. 2019-January); 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. 150, A75.]

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 | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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