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129884 (1999 TB4)
Classification: Main-belt Asteroid          SPK-ID: 2129884
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08649109014100936 4.8377e-08  
a 3.063408663184336 2.6646e-08 au
q 2.79845110835811 1.6265e-07 au
i 4.447824327978448 6.4779e-06 deg
node 339.6667965843397 5.3776e-05 deg
peri 108.8031306992257 6.6087e-05 deg
M 330.8919752177301 3.778e-05 deg
tp 2459554.849270292075
(2021-Dec-06.34927029)
0.00020577 TDB
period 1958.419979766892
5.36
2.5552e-05
6.996e-08
d
yr
n .1838216540472847 2.3984e-09 deg/d
Q 3.328366218010562 2.8951e-08 au
  Orbit Determination Parameters
   # obs. used (total)      394  
   data-arc span      7734 days (21.17 yr)  
   first obs. used      1999-10-02  
   last obs. used      2020-12-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55197  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:48:29  

Additional Information
 Earth MOID = 1.81905 au 
 Jupiter MOID = 1.83057 au 
 T_jup = 3.223 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457543.5 (2016-Jun-04.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08367540260763169 4.6646e-08  
q 2.809109283980074 1.5659e-07 au
tp 2457575.292908731798
(2016-Jul-05.79290873)
0.00021603 TDB
node 340.1557150558793 5.3697e-05 deg
peri 105.1574460522885 6.7401e-05 deg
i 4.450235544444931 6.4809e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      394  
   data-arc span      7734 days (21.17 yr)  
   first obs. used      1999-10-02  
   last obs. used      2020-12-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55197  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:48:29  

Additional Information
 Jupiter MOID = 1.83057 au 
 T_jup = 3.223 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.17583815312957E-15 -7.239305679220488E-15 1.678062380419502E-12 2.211740042726925E-15 4.056263014765235E-13 1.237811550982892E-16
q -7.239305679220488E-15 2.452024689398623E-14 -4.952574802084659E-12 -1.07164463250648E-14 -1.233695563884136E-12 1.119912288241949E-15
tp 1.678062380419502E-12 -4.952574802084659E-12 4.666910786645076E-8 -4.315080392970682E-11 8.806272478788884E-9 6.573038702023266E-12
node 2.211740042726925E-15 -1.07164463250648E-14 -4.315080392970682E-11 2.883345689931143E-9 -2.882077287731126E-9 3.025773777661991E-11
peri 4.056263014765235E-13 -1.233695563884136E-12 8.806272478788884E-9 -2.882077287731126E-9 4.542886356896911E-9 -2.913465917876395E-11
i 1.237811550982892E-16 1.119912288241949E-15 6.573038702023266E-12 3.025773777661991E-11 -2.913465917876395E-11 4.200270254873578E-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 15.72   n/a E2021B55  

129884 (1999 TB4)          Discovered 1999-Oct-02 by Sarounova, L. at Ondrejov
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

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