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100051 Davidhernandez (1991 TC16)
Classification: Main-belt Asteroid          SPK-ID: 2100051
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03905462957926582 3.5367e-08  
a 2.187465649569936 1.014e-08 au
q 2.102034988908614 7.7592e-08 au
i 5.835489658866662 3.8287e-06 deg
node 198.0388732461207 4.5004e-05 deg
peri 222.7020373734124 7.5011e-05 deg
M 282.5021229469738 6.1278e-05 deg
tp 2459254.888570409047
(2021-Feb-09.38857041)
0.00020162 TDB
period 1181.708310339847
3.24
8.2167e-06
2.25e-08
d
yr
n .3046437067845175 2.1183e-09 deg/d
Q 2.272896310231258 1.0536e-08 au
  Orbit Determination Parameters
   # obs. used (total)      592  
   data-arc span      13789 days (37.75 yr)  
   first obs. used      1981-10-01  
   last obs. used      2019-07-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56361  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:00:08  

Additional Information
 Earth MOID = 1.11653 au 
 Jupiter MOID = 2.82225 au 
 T_jup = 3.668 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456369.5 (2013-Mar-18.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03908009538477387 3.5399e-08  
q 2.102373051788049 7.7731e-08 au
tp 2456888.387677369447
(2014-Aug-18.88767737)
0.00019751 TDB
node 198.1393219194665 4.5014e-05 deg
peri 221.802288615011 7.4954e-05 deg
i 5.834054512131855 3.828e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      592  
   data-arc span      13789 days (37.75 yr)  
   first obs. used      1981-10-01  
   last obs. used      2019-07-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56361  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:00:08  

Additional Information
 Jupiter MOID = 2.82225 au 
 T_jup = 3.668 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.253065217047709E-15 -2.730145395908592E-15 9.946501879635092E-13 -4.71735057268228E-15 2.786251876818375E-13 6.353981968386705E-16
q -2.730145395908592E-15 6.042044254055569E-15 -1.79027055679214E-12 9.576076467090913E-15 -5.027237470377161E-13 -1.146285734868248E-15
tp 9.946501879635092E-13 -1.79027055679214E-12 3.901001523841854E-8 -5.975593781257314E-11 1.185673995673941E-8 -9.342099737262918E-12
node -4.71735057268228E-15 9.576076467090913E-15 -5.975593781257314E-11 2.02627954875609E-9 -2.033017979703693E-9 -1.779004219599759E-11
peri 2.786251876818375E-13 -5.027237470377161E-13 1.185673995673941E-8 -2.033017979703693E-9 5.618030797342922E-9 1.484808725529201E-11
i 6.353981968386705E-16 -1.146285734868248E-15 -9.342099737262918E-12 -1.779004219599759E-11 1.484808725529201E-11 1.465371337998197E-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 16.6   n/a MPO432529  

100051 Davidhernandez           Discovered 1991 Oct. 6 by A. Lowe on plates taken at Palomar.
David A. Hernandez (b. 1998) is a nephew of the discoverer.
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

[ show close-approach data ]
Alternate Designations
 1991 TC16 = 2004 VD74 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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