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19080 Martinfierro (1970 JB)
Classification: Mars-crossing Asteroid          SPK-ID: 2019080
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2825729324147556 3.8806e-08  
a 2.316026449748495 8.6006e-09 au
q 1.661580064292927 9.1233e-08 au
i 20.65702177559352 3.94e-06 deg
node 288.7861695003181 1.3291e-05 deg
peri 281.9338771321487 1.6566e-05 deg
M 87.11674761268775 1.1875e-05 deg
tp 2458688.960691466981
(2019-Jul-24.46069147)
4.1588e-05 TDB
period 1287.400576184418
3.52
7.1711e-06
1.963e-08
d
yr
n .2796332444303883 1.5576e-09 deg/d
Q 2.970472835204063 1.1031e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1967  
   data-arc span      18453 days (50.52 yr)  
   first obs. used      1970-05-10  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41072  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 03:09:49  

Additional Information
 Earth MOID = .779997 au 
 Jupiter MOID = 2.4319 au 
 T_jup = 3.444 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457765.5 (2017-Jan-12.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2823092742130601 3.8863e-08  
q 1.66239303056772 9.1283e-08 au
tp 2457400.928000556292
(2016-Jan-13.42800056)
3.8641e-05 TDB
node 288.8111623981422 1.3295e-05 deg
peri 281.8763495554077 1.656e-05 deg
i 20.65204114308313 3.9387e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1967  
   data-arc span      18453 days (50.52 yr)  
   first obs. used      1970-05-10  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41072  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 03:09:49  

Additional Information
 Jupiter MOID = 2.4319 au 
 T_jup = 3.444 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.510371138522364E-15 -3.539814204247046E-15 -8.618208094063964E-13 2.169700797005469E-14 -2.405087305307283E-13 6.898801494000421E-15
q -3.539814204247046E-15 8.332541766027894E-15 2.075726642977791E-12 -5.112183398463642E-14 5.792885881324694E-13 -1.594295017554697E-14
tp -8.618208094063964E-13 2.075726642977791E-12 1.493091154048394E-9 -3.375105767280614E-11 4.115582854699778E-10 -4.086308791361744E-12
node 2.169700797005469E-14 -5.112183398463642E-14 -3.375105767280614E-11 1.767626943457599E-10 -1.732209766991792E-10 2.026028506317595E-11
peri -2.405087305307283E-13 5.792885881324694E-13 4.115582854699778E-10 -1.732209766991792E-10 2.742171633803182E-10 -2.0011349597554E-11
i 6.898801494000421E-15 -1.594295017554697E-14 -4.086308791361744E-12 2.026028506317595E-11 -2.0011349597554E-11 1.551311387065897E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.9   n/a MPO384917  
rotation period rot_per 3.29015 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.]

19080 Martínfierro           Discovered 1970 May 10 at El Leoncito.
Martín Fierro is the fictitious Argentinian hero of the poems by José Hernández (1834-1886). The name was suggested by W. A. Fröger.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060413/MPCPages.arcLast Updated: 2006-04-17

Alternate Designations
 1970 JB = 1991 CP3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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