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91636 (1999 TY79)
Classification: Main-belt Asteroid          SPK-ID: 2091636
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08227218888860914 4.6186e-08  
a 3.033329986871817 2.6449e-08 au
q 2.783771289230417 1.3765e-07 au
i 9.337612432435442 5.6365e-06 deg
node 184.2035643866809 2.8038e-05 deg
peri 231.097335090076 4.2663e-05 deg
M 291.6238872742255 3.0824e-05 deg
tp 2459367.004929890533
(2021-Jun-01.50492989)
0.00016506 TDB
period 1929.647204276593
5.28
2.5238e-05
6.91e-08
d
yr
n .1865626002525994 2.4401e-09 deg/d
Q 3.282888684513217 2.8625e-08 au
  Orbit Determination Parameters
   # obs. used (total)      577  
   data-arc span      10669 days (29.21 yr)  
   first obs. used      1991-03-17  
   last obs. used      2020-06-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54816  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 00:40:21  

Additional Information
 Earth MOID = 1.80524 au 
 Jupiter MOID = 2.06463 au 
 T_jup = 3.217 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456850.5 (2014-Jul-12.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08387672572324294 4.7437e-08  
q 2.78023431820821 1.419e-07 au
tp 2457416.963950872714
(2016-Jan-29.46395087)
0.0001608 TDB
node 184.4987174948392 2.793e-05 deg
peri 227.5254029705578 4.1776e-05 deg
i 9.354304359018066 5.6486e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      577  
   data-arc span      10669 days (29.21 yr)  
   first obs. used      1991-03-17  
   last obs. used      2020-06-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54816  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 00:40:21  

Additional Information
 Jupiter MOID = 2.06463 au 
 T_jup = 3.217 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.250237815407974E-15 -6.639994230082422E-15 -2.133914195141787E-12 8.95604016649547E-15 -4.452130588081407E-13 6.029306790685545E-16
q -6.639994230082422E-15 2.013511368667388E-14 6.051575204180704E-12 -2.629887014254492E-14 1.230998747900729E-12 -1.52223980651231E-15
tp -2.133914195141787E-12 6.051575204180704E-12 2.585822843194473E-8 -3.817100558564636E-11 5.011886449297301E-9 -2.969135314841973E-12
node 8.95604016649547E-15 -2.629887014254492E-14 -3.817100558564636E-11 7.800720424439598E-10 -7.765633357958151E-10 1.409793384390259E-11
peri -4.452130588081407E-13 1.230998747900729E-12 5.011886449297301E-9 -7.765633357958151E-10 1.74526268130822E-9 -1.445598659358614E-11
i 6.029306790685545E-16 -1.52223980651231E-15 -2.969135314841973E-12 1.409793384390259E-11 -1.445598659358614E-11 3.190618376218782E-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 14.9   n/a MPO432454  

91636 (1999 TY79)          Discovered 1999-Oct-11 by Spacewatch at Kitt Peak
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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