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101839 (1999 JE65)
Classification: Main-belt Asteroid          SPK-ID: 2101839
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1539976509205842 3.3659e-08  
a 2.359058858379505 1.0956e-08 au
q 1.995769335805666 7.9202e-08 au
i 3.216073189026819 3.7723e-06 deg
node 53.37343017801865 7.6611e-05 deg
peri 172.4745704243784 7.775e-05 deg
M 338.9798404543793 1.4283e-05 deg
tp 2459277.775193125215
(2021-Mar-04.27519313)
5.2662e-05 TDB
period 1323.447115836619
3.62
9.2197e-06
2.524e-08
d
yr
n .2720169137793054 1.895e-09 deg/d
Q 2.722348380953345 1.2643e-08 au
  Orbit Determination Parameters
   # obs. used (total)      638  
   data-arc span      7984 days (21.86 yr)  
   first obs. used      1999-04-09  
   last obs. used      2021-02-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .61743  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:38:56  

Additional Information
 Earth MOID = .985153 au 
 Jupiter MOID = 2.2566 au 
 T_jup = 3.534 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456888.5 (2014-Aug-19.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1542805144688833 3.3597e-08  
q 1.995437417789825 7.9097e-08 au
tp 2456630.793387700619
(2013-Dec-04.29338770)
5.0497e-05 TDB
node 53.39389218386444 7.6623e-05 deg
peri 172.5365826290542 7.7762e-05 deg
i 3.216194654401415 3.7715e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      638  
   data-arc span      7984 days (21.86 yr)  
   first obs. used      1999-04-09  
   last obs. used      2021-02-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .61743  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:38:56  

Additional Information
 Jupiter MOID = 2.2566 au 
 T_jup = 3.534 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.128780952965426E-15 -2.639400919355635E-15 -2.422209509700233E-13 -9.443438569759837E-15 -7.017173480800893E-14 -1.072008805075829E-16
q -2.639400919355635E-15 6.256334564887458E-15 5.416094207936728E-13 2.058191436044272E-14 1.61903740736331E-13 3.163897862496246E-16
tp -2.422209509700233E-13 5.416094207936728E-13 2.549904900457972E-9 2.06072910899091E-11 6.89470749987319E-10 -1.070545386573717E-12
node -9.443438569759837E-15 2.058191436044272E-14 2.06072910899091E-11 5.871090089355961E-9 -5.855839111814035E-9 -2.732431421214448E-11
peri -7.017173480800893E-14 1.61903740736331E-13 6.89470749987319E-10 -5.855839111814035E-9 6.046878123992025E-9 2.700929677273084E-11
i -1.072008805075829E-16 3.163897862496246E-16 -1.070545386573717E-12 -2.732431421214448E-11 2.700929677273084E-11 1.422415813206087E-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 16.21   n/a E2021B55  

101839 (1999 JE65)          Discovered 1999-May-12 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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