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74911 (1999 TZ139)
Classification: Main-belt Asteroid          SPK-ID: 2074911
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09578936717530415 3.4444e-08  
a 2.356787505312534 1.0757e-08 au
q 2.131032321611983 8.2645e-08 au
i 6.705508357219721 5.4228e-06 deg
node 24.90189946827809 3.3542e-05 deg
peri 242.9274553477072 4.4668e-05 deg
M 255.3295606364616 3.0509e-05 deg
tp 2458984.738266100096
(2020-May-15.23826610)
0.00011252 TDB
period 1321.536210578095
3.62
9.0474e-06
2.477e-08
d
yr
n .2724102428056217 1.865e-09 deg/d
Q 2.582542689013085 1.1787e-08 au
  Orbit Determination Parameters
   # obs. used (total)      908  
   data-arc span      7622 days (20.87 yr)  
   first obs. used      1998-05-22  
   last obs. used      2019-04-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54073  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:26:36  

Additional Information
 Earth MOID = 1.12503 au 
 Jupiter MOID = 2.48523 au 
 T_jup = 3.538 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456514.5 (2013-Aug-10.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0966099911499681 3.4529e-08  
q 2.129211783051455 8.2961e-08 au
tp 2456339.885775640623
(2013-Feb-16.38577564)
0.00010878 TDB
node 24.96311865915777 3.3566e-05 deg
peri 242.5569097828519 4.4458e-05 deg
i 6.703662066712986 5.4201e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      908  
   data-arc span      7622 days (20.87 yr)  
   first obs. used      1998-05-22  
   last obs. used      2019-04-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54073  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:26:36  

Additional Information
 Jupiter MOID = 2.48523 au 
 T_jup = 3.538 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.192247328902094E-15 -2.845096211499501E-15 -6.70005523268014E-13 -2.68115851561828E-15 -1.722435552133962E-13 7.424004714940125E-16
q -2.845096211499501E-15 6.882491561871501E-15 1.638483311935529E-12 6.039136628693334E-15 4.235036743278728E-13 -1.505380914636645E-15
tp -6.70005523268014E-13 1.638483311935529E-12 1.183240799042651E-8 -5.92324718549371E-12 3.182336122761731E-9 3.428301293474345E-12
node -2.68115851561828E-15 6.039136628693334E-15 -5.92324718549371E-12 1.126693478412015E-9 -1.120103181145439E-9 -3.53274527684735E-11
peri -1.722435552133962E-13 4.235036743278728E-13 3.182336122761731E-9 -1.120103181145439E-9 1.976492287654186E-9 3.601020037856221E-11
i 7.424004714940125E-16 -1.505380914636645E-15 3.428301293474345E-12 -3.53274527684735E-11 3.601020037856221E-11 2.937786978071371E-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 15.5   n/a MPO436307  

74911 (1999 TZ139)          Discovered 1999-Oct-06 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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