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39960 (1998 FU122)
Classification: Main-belt Asteroid          SPK-ID: 2039960
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2302274716863407 3.0434e-08  
a 2.430303270078231 1.1635e-08 au
q 1.870780692777074 7.3968e-08 au
i 7.401481197674572 5.5101e-06 deg
node 179.6037700897809 2.9536e-05 deg
peri 106.5756948825367 3.3384e-05 deg
M 239.043754042178 1.7744e-05 deg
tp 2459465.459293194601
(2021-Sep-07.95929319)
7.0445e-05 TDB
period 1383.850368573974
3.79
9.9375e-06
2.721e-08
d
yr
n .2601437324260511 1.8681e-09 deg/d
Q 2.989825847379388 1.4313e-08 au
  Orbit Determination Parameters
   # obs. used (total)      720  
   data-arc span      8897 days (24.36 yr)  
   first obs. used      1995-09-26  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56483  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:40:21  

Additional Information
 Earth MOID = .871113 au 
 Jupiter MOID = 2.23444 au 
 T_jup = 3.460 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457199.5 (2015-Jun-26.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .231124604118549 3.0412e-08  
q 1.867742307647119 7.39e-08 au
tp 2456697.904016848853
(2014-Feb-09.40401685)
5.8427e-05 TDB
node 179.6394214862126 2.9542e-05 deg
peri 106.5293751875658 3.3369e-05 deg
i 7.40146655646423 5.5108e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      720  
   data-arc span      8897 days (24.36 yr)  
   first obs. used      1995-09-26  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56483  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:40:21  

Additional Information
 Jupiter MOID = 2.23444 au 
 T_jup = 3.460 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.249176372845314E-16 -2.231330141845613E-15 8.073261091748148E-14 1.680175974202802E-15 2.211822239059017E-14 1.150672455094396E-15
q -2.231330141845613E-15 5.46128167035558E-15 5.090743670463933E-14 -4.903039558223052E-15 1.553066382349892E-14 -2.384284637949499E-15
tp 8.073261091748148E-14 5.090743670463933E-14 3.413714714572113E-9 -1.819433191124098E-11 9.17210321139416E-10 2.678667217525955E-12
node 1.680175974202802E-15 -4.903039558223052E-15 -1.819433191124098E-11 8.727351880386831E-10 -8.696608834250734E-10 3.654804825975173E-11
peri 2.211822239059017E-14 1.553066382349892E-14 9.17210321139416E-10 -8.696608834250734E-10 1.113462097511812E-9 -3.553094560109825E-11
i 1.150672455094396E-15 -2.384284637949499E-15 2.678667217525955E-12 3.654804825975173E-11 -3.553094560109825E-11 3.036867070391826E-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 15.5   n/a MPO502432  
diameter diameter 1.518 km 0.280 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.530   0.240 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39960 (1998 FU122)          Discovered 1998-Mar-20 by LINEAR at Socorro
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 FU122 = 1999 TP283 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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