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11892 (1991 FT2)
Classification: Main-belt Asteroid          SPK-ID: 2011892
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06884156857104988 4.2016e-08  
a 2.220965644199296 7.2998e-09 au
q 2.068070885510204 9.6575e-08 au
i 4.064070568864751 4.9137e-06 deg
node 9.338539299219796 5.3541e-05 deg
peri 80.61442362015067 6.4777e-05 deg
M 12.7788238576996 3.5508e-05 deg
tp 2458957.585943283537
(2020-Apr-18.08594328)
0.00011924 TDB
period 1208.957928363495
3.31
5.9604e-06
1.632e-08
d
yr
n .2977771116380484 1.4681e-09 deg/d
Q 2.373860402888388 7.8024e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1223  
   data-arc span      10497 days (28.74 yr)  
   first obs. used      1991-03-09  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55345  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 23:20:21  

Additional Information
 Earth MOID = 1.08911 au 
 Jupiter MOID = 2.72537 au 
 T_jup = 3.643 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456528.5 (2013-Aug-24.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06863094192213394 4.1912e-08  
q 2.068894606157516 9.6384e-08 au
tp 2456539.349079959710
(2013-Sep-03.84907996)
0.00012043 TDB
node 9.416101628625729 5.3486e-05 deg
peri 80.46852179028809 6.4859e-05 deg
i 4.06651641079171 4.9153e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1223  
   data-arc span      10497 days (28.74 yr)  
   first obs. used      1991-03-09  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55345  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 23:20:21  

Additional Information
 Jupiter MOID = 2.72537 au 
 T_jup = 3.643 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.756577988759245E-15 -4.031541012493208E-15 -4.655870152786663E-13 1.064712457300189E-14 -8.954208856994252E-14 3.207546592761646E-16
q -4.031541012493208E-15 9.289858915723471E-15 9.592318357457741E-13 -2.428467705574538E-14 1.732290097686484E-13 -7.520924717764276E-16
tp -4.655870152786663E-13 9.592318357457741E-13 1.450320787130111E-8 -3.316627880893182E-11 4.426035602024987E-9 4.469195101033418E-12
node 1.064712457300189E-14 -2.428467705574538E-14 -3.316627880893182E-11 2.860781095702679E-9 -2.862687683017726E-9 3.176906927634468E-11
peri -8.954208856994252E-14 1.732290097686484E-13 4.426035602024987E-9 -2.862687683017726E-9 4.206716001506211E-9 -3.029488733479758E-11
i 3.207546592761646E-16 -7.520924717764276E-16 4.469195101033418E-12 3.176906927634468E-11 -3.029488733479758E-11 2.41606492124456E-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 MPO502260  
diameter diameter 2.832 km 0.380 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.201   0.056 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11892 (1991 FT2)          Discovered 1991-Mar-20 by Debehogne, H. at La Silla
Reference: 19991026/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 FT2 = 1994 AT15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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