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102485 (1999 TQ258)
Classification: Main-belt Asteroid          SPK-ID: 2102485
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1916221636853599 3.5961e-08  
a 2.634400760132964 1.5532e-08 au
q 2.129591186461929 9.986e-08 au
i 1.821890769875644 5.4997e-06 deg
node 326.4647290157592 0.00011981 deg
peri 117.2032219168714 0.00012107 deg
M 292.3507142496943 1.9666e-05 deg
tp 2459493.982294794485
(2021-Oct-06.48229479)
8.6985e-05 TDB
period 1561.784798674495
4.28
1.3812e-05
3.782e-08
d
yr
n .2305055090211764 2.0386e-09 deg/d
Q 3.139210333803999 1.8509e-08 au
  Orbit Determination Parameters
   # obs. used (total)      454  
   data-arc span      10510 days (28.77 yr)  
   first obs. used      1992-01-01  
   last obs. used      2020-10-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58354  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:42:12  

Additional Information
 Earth MOID = 1.14606 au 
 Jupiter MOID = 2.09499 au 
 T_jup = 3.371 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457574.5 (2016-Jul-05.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1921114589489383 3.5987e-08  
q 2.129063084843276 1.0028e-07 au
tp 2457924.807068292798
(2017-Jun-20.30706829)
7.7882e-05 TDB
node 326.8518555044137 0.00012029 deg
peri 115.6578763927618 0.00012152 deg
i 1.817755914822907 5.4909e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      454  
   data-arc span      10510 days (28.77 yr)  
   first obs. used      1992-01-01  
   last obs. used      2020-10-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58354  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:42:12  

Additional Information
 Jupiter MOID = 2.09499 au 
 T_jup = 3.371 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.295050920230549E-15 -3.582917589321389E-15 -5.752449507861494E-13 3.210711759811822E-15 -7.090931286526445E-14 -4.017250686690471E-16
q -3.582917589321389E-15 1.005552161879378E-14 2.108736881180214E-12 -8.257519209505098E-15 3.032969406650804E-13 1.409105573342831E-15
tp -5.752449507861494E-13 2.108736881180214E-12 6.065642322879083E-9 -9.791134268429224E-12 1.349165799464376E-9 1.563467622903662E-12
node 3.210711759811822E-15 -8.257519209505098E-15 -9.791134268429224E-12 1.446857976940046E-8 -1.446306365707788E-8 1.71558338152099E-10
peri -7.090931286526445E-14 3.032969406650804E-13 1.349165799464376E-9 -1.446306365707788E-8 1.476652875431236E-8 -1.711696842221098E-10
i -4.017250686690471E-16 1.409105573342831E-15 1.563467622903662E-12 1.71558338152099E-10 -1.711696842221098E-10 3.015046907026831E-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 16.22   n/a E2021B55  

102485 (1999 TQ258)          Discovered 1999-Oct-09 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1999 TQ258 = 2003 SN129 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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