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JPL Small-Body Database Browser
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91689 (1999 TJ127)
Classification: Main-belt Asteroid          SPK-ID: 2091689
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1948986649786859 4.1218e-08  
a 3.14461887300976 2.6209e-08 au
q 2.531736852793378 1.3084e-07 au
i 5.371366138671674 4.9137e-06 deg
node 177.9333600137238 5.4384e-05 deg
peri 196.633567388748 5.5981e-05 deg
M 260.645198498178 1.5401e-05 deg
tp 2459562.630061464808
(2021-Dec-14.13006146)
9.1638e-05 TDB
period 2036.809686783179
5.58
2.5463e-05
6.971e-08
d
yr
n .1767469991605172 2.2096e-09 deg/d
Q 3.757500893226143 3.1317e-08 au
  Orbit Determination Parameters
   # obs. used (total)      469  
   data-arc span      7151 days (19.58 yr)  
   first obs. used      1999-10-03  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53335  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:35:44  

Additional Information
 Earth MOID = 1.53312 au 
 Jupiter MOID = 1.70551 au 
 T_jup = 3.173 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456896.5 (2014-Aug-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1963325539962636 4.1092e-08  
q 2.525005948186734 1.3007e-07 au
tp 2457531.371046462017
(2016-May-22.87104646)
7.7024e-05 TDB
node 177.9935925817247 5.4365e-05 deg
peri 197.1880304943386 5.5942e-05 deg
i 5.374099370627574 4.9161e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      469  
   data-arc span      7151 days (19.58 yr)  
   first obs. used      1999-10-03  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53335  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:35:44  

Additional Information
 Jupiter MOID = 1.70551 au 
 T_jup = 3.173 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.688526867646167E-15 -5.271884254794973E-15 -9.749690558553786E-14 1.011802890982937E-15 -1.657290522027385E-14 -1.077989819011114E-15
q -5.271884254794973E-15 1.691825894407979E-14 9.911996996643564E-13 -1.279321052620063E-15 1.418158308330057E-13 3.732752832383916E-15
tp -9.749690558553786E-14 9.911996996643564E-13 5.932680739127359E-9 1.866246963019668E-11 1.048553084626886E-9 1.82306554214249E-12
node 1.011802890982937E-15 -1.279321052620063E-15 1.866246963019668E-11 2.955598278943216E-9 -2.938850022820949E-9 -2.07565957340561E-11
peri -1.657290522027385E-14 1.418158308330057E-13 1.048553084626886E-9 -2.938850022820949E-9 3.129498966134943E-9 2.099000912422972E-11
i -1.077989819011114E-15 3.732752832383916E-15 1.82306554214249E-12 -2.07565957340561E-11 2.099000912422972E-11 2.416801426681026E-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 15.2   n/a MPO436412  
diameter diameter 5.208 km 0.255 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.059   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91689 (1999 TJ127)          Discovered 1999-Oct-04 by LINEAR at Socorro
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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