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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2303021758951976 2.9452e-08  
a 2.429751632095561 7.6245e-09 au
q 1.870174544339046 7.2904e-08 au
i 7.402630646963022 4.0903e-06 deg
node 179.601997164144 2.8792e-05 deg
peri 106.6498235729139 3.0551e-05 deg
M 342.0158593643523 9.4611e-06 deg
tp 2459465.608018360147
(2021-Sep-08.10801836)
3.6394e-05 TDB
period 1383.379229160301
3.79
6.5115e-06
1.783e-08
d
yr
n .2602323299436242 1.2249e-09 deg/d
Q 2.989328719852077 9.3804e-09 au
  Orbit Determination Parameters
   # obs. used (total)      979  
   data-arc span      9448 days (25.87 yr)  
   first obs. used      1995-09-26  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5118  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 00:35:53  

Additional Information
 Earth MOID = .870186 au 
 Jupiter MOID = 2.2335 au 
 T_jup = 3.460 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457682.5 (2016-Oct-21.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2305462872620905 2.9442e-08  
q 1.870138631886582 7.2993e-08 au
tp 2458080.822048810742
(2017-Nov-23.32204881)
3.6077e-05 TDB
node 179.631409112909 2.8788e-05 deg
peri 106.4415741348603 3.0539e-05 deg
i 7.402153751700699 4.0902e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      979  
   data-arc span      9448 days (25.87 yr)  
   first obs. used      1995-09-26  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5118  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 00:35:53  

Additional Information
 Jupiter MOID = 2.2335 au 
 T_jup = 3.460 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.668518680761228E-16 -2.142382926318104E-15 -2.906209087441779E-13 4.330562896934189E-15 -6.437651051927411E-14 -3.01632044824891E-15
q -2.142382926318104E-15 5.327995174293399E-15 7.004917077585289E-13 -9.820949888314309E-15 1.512728293809108E-13 7.695432364455747E-15
tp -2.906209087441779E-13 7.004917077585289E-13 1.301552572872916E-9 -5.381329719120586E-12 3.788120898082778E-10 5.149183665695473E-12
node 4.330562896934189E-15 -9.820949888314309E-15 -5.381329719120586E-12 8.287580561578561E-10 -8.231492760972706E-10 3.914640451920614E-11
peri -6.437651051927411E-14 1.512728293809108E-13 3.788120898082778E-10 -8.231492760972706E-10 9.326226888573083E-10 -3.747244740455731E-11
i -3.01632044824891E-15 7.695432364455747E-15 5.149183665695473E-12 3.914640451920614E-11 -3.747244740455731E-11 1.672955028819546E-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 15.66   n/a MPO636643  
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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