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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06697247958261504 7.1617e-08  
a 2.35565841724518 1.8034e-08 au
q 2.197894131992612 1.7222e-07 au
i 4.468472162830334 6.5223e-06 deg
node 237.6238967959629 8.2721e-05 deg
peri 341.7418110493623 9.8633e-05 deg
M 75.01655726447252 5.3667e-05 deg
tp 2457325.317045673984
(2015-Oct-29.81704567)
0.00019708 JED
period 1320.586643400695
3.62
1.5165e-05
4.152e-08
d
yr
n .272606119256931 3.1305e-09 deg/d
Q 2.513422702497748 1.9242e-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 = 1.18966 au 
 Jupiter MOID = 2.46185 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. 2016-February); 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. (2016) 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 | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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