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19905 (4086 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2019905
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1877005886448241 5.4074e-08  
a 2.200135254959194 7.505e-09 au
q 1.787168572505123 1.1885e-07 au
i 3.739075039477978 4.9639e-06 deg
node 111.8127453575243 6.8047e-05 deg
peri 206.1553602342233 6.8646e-05 deg
M 127.4398536584424 1.007e-05 deg
tp 2458778.536136068102
(2019-Oct-22.03613607)
3.2755e-05 TDB
period 1191.989684974188
3.26
6.0991e-06
1.67e-08
d
yr
n .3020160363281966 1.5453e-09 deg/d
Q 2.613101937413265 8.9137e-09 au
  Orbit Determination Parameters
   # obs. used (total)      853  
   data-arc span      24245 days (66.38 yr)  
   first obs. used      1954-09-02  
   last obs. used      2021-01-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53886  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:08:45  

Additional Information
 Earth MOID = .772702 au 
 Jupiter MOID = 2.677 au 
 T_jup = 3.640 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457118.5 (2015-Apr-06.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1875877921668 5.3971e-08  
q 1.787645876628529 1.1854e-07 au
tp 2457587.251871268299
(2016-Jul-17.75187127)
3.1935e-05 TDB
node 111.8378012490154 6.8072e-05 deg
peri 206.177137600423 6.8675e-05 deg
i 3.738484039341715 4.9626e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      853  
   data-arc span      24245 days (66.38 yr)  
   first obs. used      1954-09-02  
   last obs. used      2021-01-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53886  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:08:45  

Additional Information
 Jupiter MOID = 2.677 au 
 T_jup = 3.640 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.912815822425738E-15 -6.388963801760721E-15 5.521284622611391E-13 1.773874565928385E-14 1.107768691975684E-13 -2.785926158832579E-15
q -6.388963801760721E-15 1.405100086651619E-14 -1.204909878461951E-12 -3.938922579560341E-14 -2.464633160623478E-13 6.179811877280394E-15
tp 5.521284622611391E-13 -1.204909878461951E-12 1.019828357184289E-9 4.640719483501529E-12 3.057056586872584E-10 -7.429376218364834E-13
node 1.773874565928385E-14 -3.938922579560341E-14 4.640719483501529E-12 4.633833171911359E-9 -4.622289395834952E-9 1.495913477346416E-10
peri 1.107768691975684E-13 -2.464633160623478E-13 3.057056586872584E-10 -4.622289395834952E-9 4.716246688607074E-9 -1.49503789590908E-10
i -2.785926158832579E-15 6.179811877280394E-15 -7.429376218364834E-13 1.495913477346416E-10 -1.49503789590908E-10 2.462759952492461E-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 16.28   n/a MPCxxxxx  

19905 (4086 T-3)          Discovered 1977-Oct-16 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 4086 T-3 = 1990 SD7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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