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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06180722406721374 4.4576e-08  
a 3.051599061394506 1.5679e-08 au
q 2.862988194443596 1.3989e-07 au
i 8.976481588293634 4.4687e-06 deg
node 201.2126445952236 2.3946e-05 deg
peri 318.6174799610991 3.7847e-05 deg
M 8.408809810994184 2.821e-05 deg
tp 2458955.019873407551
(2020-Apr-15.51987341)		 0.00015262 TDB
period 1947.106182836327
5.33		 1.5006e-05
4.108e-08		 d
yr
n .1848897626505361 1.4249e-09 deg/d
Q 3.240209928345415 1.6648e-08 au
   Orbit Determination Parameters
   # obs. used (total)      2086  
   data-arc span      15401 days (42.17 yr)  
   first obs. used      1978-04-11  
   last obs. used      2020-06-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46335  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 19:36:29  

Additional Information
 Earth MOID = 1.87695 au 
 Jupiter MOID = 1.75587 au 
 T_jup = 3.215 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456852.5 (2014-Jul-14.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06425857631101341 4.4395e-08  
q 2.858088562413448 1.4003e-07 au
tp 2457007.814232779864
(2014-Dec-16.31423278)		 0.0001493 TDB
node 201.2936266642898 2.3973e-05 deg
peri 318.6084791345826 3.704e-05 deg
i 8.969426151071882 4.4654e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      2086  
   data-arc span      15401 days (42.17 yr)  
   first obs. used      1978-04-11  
   last obs. used      2020-06-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46335  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 19:36:29  

Additional Information
 Jupiter MOID = 1.75587 au 
 T_jup = 3.215 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.970923675379122E-15 -6.184286013544621E-15 1.50835811810058E-12 -5.227745431216691E-15 3.206713160125752E-13 -8.536691094881566E-16
q -6.184286013544621E-15 1.960922616326886E-14 -5.042142819924763E-12 1.802488280549083E-14 -1.068491826127954E-12 1.855189153824721E-15
tp 1.50835811810058E-12 -5.042142819924763E-12 2.228995121549167E-8 -1.833566872011804E-11 4.232404027260696E-9 7.857451461604064E-13
node -5.227745431216691E-15 1.802488280549083E-14 -1.833566872011804E-11 5.74712249988103E-10 -5.707866786166507E-10 -3.151071664481923E-11
peri 3.206713160125752E-13 -1.068491826127954E-12 4.232404027260696E-9 -5.707866786166507E-10 1.371977148053058E-9 3.128172567661678E-11
i -8.536691094881566E-16 1.855189153824721E-15 7.857451461604064E-13 -3.151071664481923E-11 3.128172567661678E-11 1.993945597820513E-11

[ 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 12.9   n/a MPO250479  
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

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Alternate Designations
 1996 XW8 = 1978 GY3 = 2000 LO5 
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