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66838 (1999 UF49)
Classification: Main-belt Asteroid          SPK-ID: 2066838
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04742272989822805 4.2585e-08  
a 2.749707667186852 1.8036e-08 au
q 2.619309023186763 1.1821e-07 au
i 5.044268145625518 5.4184e-06 deg
node 348.2211105964436 4.3715e-05 deg
peri 58.47402965080062 6.9818e-05 deg
M 261.0596445644769 5.5651e-05 deg
tp 2459854.219251696745
(2022-Oct-01.71925170)
0.00025888 TDB
period 1665.437018954419
4.56
1.6386e-05
4.486e-08
d
yr
n .216159480006042 2.1268e-09 deg/d
Q 2.880106311186941 1.8892e-08 au
  Orbit Determination Parameters
   # obs. used (total)      498  
   data-arc span      9863 days (27.00 yr)  
   first obs. used      1994-06-13  
   last obs. used      2021-06-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56862  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 14:30:44  

Additional Information
 Earth MOID = 1.63141 au 
 Jupiter MOID = 2.29617 au 
 T_jup = 3.339 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457712.5 (2016-Nov-20.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0482472339968724 4.1976e-08  
q 2.61486078897531 1.1594e-07 au
tp 2458199.535259215782
(2018-Mar-22.03525922)
0.00025213 TDB
node 348.2626967397252 4.3748e-05 deg
peri 60.50101306308836 6.9568e-05 deg
i 5.043778479981442 5.4173e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      498  
   data-arc span      9863 days (27.00 yr)  
   first obs. used      1994-06-13  
   last obs. used      2021-06-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56862  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 14:30:44  

Additional Information
 Jupiter MOID = 2.29617 au 
 T_jup = 3.339 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.761964288467306E-15 -4.812127710492143E-15 -2.562865744983581E-12 -4.022375280967997E-15 -6.040785615392638E-13 1.050149334084283E-15
q -4.812127710492143E-15 1.344118253219481E-14 8.0518656428709E-12 1.091019888482786E-14 1.857134235413514E-12 -2.843150454118025E-15
tp -2.562865744983581E-12 8.0518656428709E-12 6.357096737450857E-8 -5.208877050905437E-11 1.364465296893962E-8 -1.317389087541688E-11
node -4.022375280967997E-15 1.091019888482786E-14 -5.208877050905437E-11 1.913919574587917E-9 -1.91695492298521E-9 1.013501184266326E-11
peri -6.040785615392638E-13 1.857134235413514E-12 1.364465296893962E-8 -1.91695492298521E-9 4.839637830693203E-9 -1.290955045017552E-11
i 1.050149334084283E-15 -2.843150454118025E-15 -1.317389087541688E-11 1.013501184266326E-11 -1.290955045017552E-11 2.934767060616078E-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 15.65   n/a E2021B10  

66838 (1999 UF49)          Discovered 1999-Oct-31 by CSS at Catalina
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 UF49 = 1994 RX21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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