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19890 (3042 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2019890
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04578095481126448 2.8339e-08  
a 2.22747188955855 6.7865e-09 au
q 2.125496099639308 6.4278e-08 au
i 4.193245638894374 3.5749e-06 deg
node 145.5658034518666 4.3515e-05 deg
peri 322.7878795772191 6.4006e-05 deg
M 331.1943477370894 4.4773e-05 deg
tp 2459297.661002628899
(2021-Mar-24.16100263)
0.00015086 TDB
period 1214.274220460552
3.32
5.5493e-06
1.519e-08
d
yr
n .2964733945051213 1.3549e-09 deg/d
Q 2.329447679477792 7.0972e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1336  
   data-arc span      17336 days (47.46 yr)  
   first obs. used      1973-09-19  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52338  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:08:33  

Additional Information
 Earth MOID = 1.14366 au 
 Jupiter MOID = 2.69884 au 
 T_jup = 3.640 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456956.5 (2014-Oct-26.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0456280309839031 2.8222e-08  
q 2.126366062753996 6.4018e-08 au
tp 2456867.410017902903
(2014-Jul-28.91001790)
0.00015617 TDB
node 145.6201605972756 4.3543e-05 deg
peri 322.3055848896851 6.4246e-05 deg
i 4.191458576566278 3.5738e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1336  
   data-arc span      17336 days (47.46 yr)  
   first obs. used      1973-09-19  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52338  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:08:33  

Additional Information
 Jupiter MOID = 2.69884 au 
 T_jup = 3.640 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.964961791085868E-16 -1.79753694518327E-15 6.690068262646779E-13 -5.169904061131192E-15 2.046645638456307E-13 -9.268648717293158E-16
q -1.79753694518327E-15 4.098350299207763E-15 -1.910025198413389E-12 1.136020351352957E-14 -5.824780782322062E-13 2.133991964360229E-15
tp 6.690068262646779E-13 -1.910025198413389E-12 2.43887027768E-8 8.224703411260015E-12 7.385324378986197E-9 5.676209787259955E-13
node -5.169904061131192E-15 1.136020351352957E-14 8.224703411260015E-12 1.896012295247044E-9 -1.888143267028123E-9 1.943140236243588E-11
peri 2.046645638456307E-13 -5.824780782322062E-13 7.385324378986197E-9 -1.888143267028123E-9 4.127558916787911E-9 -1.921277047239939E-11
i -9.268648717293158E-16 2.133991964360229E-15 5.676209787259955E-13 1.943140236243588E-11 -1.921277047239939E-11 1.277205964430889E-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 15.55   n/a MPCxxxxx  

19890 (3042 T-2)          Discovered 1973-Sep-30 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 3042 T-2 = 1996 NS2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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