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27922 Mascheroni (1996 XW8)
Classification: Main-belt Asteroid          SPK-ID: 2027922
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06160098148437539 1.9048e-08  
a 3.050883640403632 1.4407e-08 au
q 2.862946213760144 5.7283e-08 au
i 8.977500237455381 4.2516e-07 deg
node 201.210806690329 1.9151e-06 deg
peri 318.5382900538944 1.3891e-05 deg
M 45.476645319865 1.2509e-05 deg
tp 2458954.620221711520
(2020-Apr-15.12022171)
6.7129e-05 TDB
period 1946.421499678804
5.33
1.3787e-05
3.775e-08
d
yr
n .1849548004167683 1.3101e-09 deg/d
Q 3.23882106704712 1.5294e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2206  
   data-arc span      15686 days (42.95 yr)  
   first obs. used      1978-04-11  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47949  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 04:08:22  

Additional Information
 Earth MOID = 1.87662 au 
 Jupiter MOID = 1.75623 au 
 T_jup = 3.215 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457044.5 (2015-Jan-22.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06354740006059013 1.9038e-08  
q 2.858295257926174 5.74e-08 au
tp 2457006.980776355859
(2014-Dec-15.48077636)
6.2346e-05 TDB
node 201.242232906025 1.9156e-06 deg
peri 318.4787001320355 1.3471e-05 deg
i 8.974627687540686 4.2499e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2206  
   data-arc span      15686 days (42.95 yr)  
   first obs. used      1978-04-11  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47949  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 04:08:22  

Additional Information
 Jupiter MOID = 1.75623 au 
 T_jup = 3.215 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.624630931080162E-16 -1.063374441339793E-15 -5.099967790007222E-13 -6.017053124124809E-15 -1.159463907748946E-13 -2.681655221913222E-15
q -1.063374441339793E-15 3.294705779335291E-15 1.626702928761077E-12 1.838206185035158E-14 3.687897976294462E-13 8.199399393768004E-15
tp -5.099967790007222E-13 1.626702928761077E-12 3.88704529242571E-9 -1.679315199197315E-11 8.332687964144054E-10 -4.352160652576128E-12
node -6.017053124124809E-15 1.838206185035158E-14 -1.679315199197315E-11 3.669671851367365E-12 -6.230683627570402E-12 5.718812874739381E-13
peri -1.159463907748946E-13 3.687897976294462E-13 8.332687964144054E-10 -6.230683627570402E-12 1.814562209171123E-10 -1.233973134283787E-12
i -2.681655221913222E-15 8.199399393768004E-15 -4.352160652576128E-12 5.718812874739381E-13 -1.233973134283787E-12 1.806162410791655E-13

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 13.00   n/a MPCxxxxx  
diameter diameter 9.997 km 0.101 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 1110.58 h n/a LCDB (Rev. 2020-October); 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.121   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27922 Mascheroni           Discovered 1996 Dec. 8 by P. G. Comba at Prescott.
Lorenzo Mascheroni (1750-1800), professor at the University of Pavia and author of a treatise on statics, proved that all plane construction problems that can be solved with ruler and compass can also be solved with compass alone.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020427/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1996 XW8 = 1978 GY3 = 2000 LO5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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