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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0391134286848867 3.274e-08  
a 2.187358465036087 7.6287e-09 au
q 2.101803375705614 7.4145e-08 au
i 5.835650230696956 3.7748e-06 deg
node 198.0379634118136 3.4165e-05 deg
peri 222.8709084054565 6.2134e-05 deg
M 343.2784277232324 5.0464e-05 deg
tp 2459255.384912764007
(2021-Feb-09.88491276)
0.00016559 TDB
period 1181.621456882634
3.24
6.1816e-06
1.692e-08
d
yr
n .3046660992004629 1.5939e-09 deg/d
Q 2.272913554366559 7.9271e-09 au
  Orbit Determination Parameters
   # obs. used (total)      768  
   data-arc span      14347 days (39.28 yr)  
   first obs. used      1981-10-01  
   last obs. used      2021-01-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53317  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:24:12  

Additional Information
 Earth MOID = 1.11547 au 
 Jupiter MOID = 2.82122 au 
 T_jup = 3.668 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457028.5 (2015-Jan-06.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03922553128776805 3.2838e-08  
q 2.101992770368345 7.4341e-08 au
tp 2456890.078529627927
(2014-Aug-20.57852963)
0.00016692 TDB
node 198.1228215679173 3.4172e-05 deg
peri 222.3687666858372 6.1883e-05 deg
i 5.834188681052518 3.7744e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      768  
   data-arc span      14347 days (39.28 yr)  
   first obs. used      1981-10-01  
   last obs. used      2021-01-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53317  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:24:12  

Additional Information
 Jupiter MOID = 2.82122 au 
 T_jup = 3.668 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.07831539262847E-15 -2.430271661261956E-15 -3.663336874521173E-13 -1.200629468147028E-15 -1.144672814602743E-13 4.493616304675154E-16
q -2.430271661261956E-15 5.52660452620778E-15 5.184245045099713E-13 2.605636897497002E-15 1.647829243671986E-13 -7.139567477951803E-16
tp -3.663336874521173E-13 5.184245045099713E-13 2.786157739957642E-8 -2.270409873843215E-11 8.621926682244407E-9 -8.132038211053512E-12
node -1.200629468147028E-15 2.605636897497002E-15 -2.270409873843215E-11 1.167740826139744E-9 -1.168119479276078E-9 -6.458048740440817E-12
peri -1.144672814602743E-13 1.647829243671986E-13 8.621926682244407E-9 -1.168119479276078E-9 3.829485428759011E-9 3.935450138846138E-12
i 4.493616304675154E-16 -7.139567477951803E-16 -8.132038211053512E-12 -6.458048740440817E-12 3.935450138846138E-12 1.424637195053886E-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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2168-Nov-18 18:44 < 00:01 Hebe 0.0447461958001127 0.0447370088746503 0.0447553944772403 5.60666099595343 5.60666097117367 2513228.280212078 0.696168076100037 1233.5070665146 27.5719550266407 -68.2252213212043 225391.635883155 T 20 CATAB v2.0f-lin.ifort 2021-Feb-24 08:24:14 2021-Feb-24 08:24

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