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74802 (1999 SX19)
Classification: Main-belt Asteroid          SPK-ID: 2074802
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1624102164202318 3.4473e-08  
a 2.269143500722678 9.3891e-09 au
q 1.900611413681745 8.2305e-08 au
i 4.299389777716442 3.3922e-06 deg
node 107.155499296177 4.77e-05 deg
peri 224.5820539938285 4.8977e-05 deg
M 37.80375564335118 1.1144e-05 deg
tp 2458869.393623152813
(2020-Jan-20.89362315)
3.8507e-05 TDB
period 1248.508114121414
3.42
7.749e-06
2.122e-08
d
yr
n .2883441412419936 1.7896e-09 deg/d
Q 2.63767558776361 1.0914e-08 au
  Orbit Determination Parameters
   # obs. used (total)      971  
   data-arc span      10406 days (28.49 yr)  
   first obs. used      1991-02-22  
   last obs. used      2019-08-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56621  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:22:11  

Additional Information
 Earth MOID = .892605 au 
 Jupiter MOID = 2.70304 au 
 T_jup = 3.593 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457085.5 (2015-Mar-04.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1625339035010107 3.4441e-08  
q 1.900814147077603 8.2267e-08 au
tp 2457621.662901535102
(2016-Aug-21.16290154)
3.8072e-05 TDB
node 107.181514122415 4.7719e-05 deg
peri 224.7790415995582 4.8998e-05 deg
i 4.298449405816318 3.3912e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      971  
   data-arc span      10406 days (28.49 yr)  
   first obs. used      1991-02-22  
   last obs. used      2019-08-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56621  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:22:11  

Additional Information
 Jupiter MOID = 2.70304 au 
 T_jup = 3.593 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.186198587988687E-15 -2.823360329067804E-15 1.240573928511942E-13 5.719270623425707E-15 6.429208163938417E-14 -8.830071097385519E-16
q -2.823360329067804E-15 6.767895338634066E-15 -2.970836458192681E-13 -1.351717072998163E-14 -1.598480567708814E-13 2.255035108484187E-15
tp 1.240573928511942E-13 -2.970836458192681E-13 1.449466652662312E-9 -1.605791243485474E-12 4.328951187867881E-10 7.004670802699014E-14
node 5.719270623425707E-15 -1.351717072998163E-14 -1.605791243485474E-12 2.277082875641358E-9 -2.270690780954607E-9 -8.325242579487131E-12
peri 6.429208163938417E-14 -1.598480567708814E-13 4.328951187867881E-10 -2.270690780954607E-9 2.400836134569905E-9 8.271625089180013E-12
i -8.830071097385519E-16 2.255035108484187E-15 7.004670802699014E-14 -8.325242579487131E-12 8.271625089180013E-12 1.150042531408261E-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 15.7   n/a MPO436306  

74802 (1999 SX19)          Discovered 1999-Sep-30 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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