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102480 (1999 TW250)
Classification: Main-belt Asteroid          SPK-ID: 2102480
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08962444999188811 3.458e-08  
a 2.999519920648841 1.8322e-08 au
q 2.730689597520977 9.942e-08 au
i .492776686880036 3.8658e-06 deg
node 48.88372766601375 0.0004089 deg
peri 291.8485458642268 0.00040946 deg
M 68.35842493628837 2.114e-05 deg
tp 2458840.198890557053
(2019-Dec-22.69889056)
0.00011121 TDB
period 1897.474956749695
5.20
1.7386e-05
4.76e-08
d
yr
n .18972582416406 1.7384e-09 deg/d
Q 3.268350243776706 1.9964e-08 au
  Orbit Determination Parameters
   # obs. used (total)      741  
   data-arc span      10519 days (28.80 yr)  
   first obs. used      1992-04-24  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5002  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:42:11  

Additional Information
 Earth MOID = 1.72026 au 
 Jupiter MOID = 2.06795 au 
 T_jup = 3.247 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457558.5 (2016-Jun-19.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09331871070191912 3.4811e-08  
q 2.71798682970456 1.0061e-07 au
tp 2456939.286321586637
(2014-Oct-08.78632159)
0.00010598 TDB
node 48.8131677987254 0.00040519 deg
peri 291.3754358618595 0.00040571 deg
i .4974143918163658 3.8678e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      741  
   data-arc span      10519 days (28.80 yr)  
   first obs. used      1992-04-24  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5002  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:42:11  

Additional Information
 Jupiter MOID = 2.06795 au 
 T_jup = 3.247 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.211793737938075E-15 -3.459478365597972E-15 1.613528400896482E-13 7.119361345230315E-15 7.389931532022973E-15 -5.40012410582749E-17
q -3.459478365597972E-15 1.012145149341762E-14 -6.494192026936049E-13 -2.736474834259495E-14 -3.58774071222835E-14 1.541101924333127E-16
tp 1.613528400896482E-13 -6.494192026936049E-13 1.123146813573742E-8 -4.442246313735344E-12 2.189429034243054E-9 -6.331088939726414E-14
node 7.119361345230315E-15 -2.736474834259495E-14 -4.442246313735344E-12 1.64176463154255E-7 -1.641705894820542E-7 -7.299014611153104E-11
peri 7.389931532022973E-15 -3.58774071222835E-14 2.189429034243054E-9 -1.641705894820542E-7 1.64597987162544E-7 7.297833631678223E-11
i -5.40012410582749E-17 1.541101924333127E-16 -6.331088939726414E-14 -7.299014611153104E-11 7.297833631678223E-11 1.495998741009583E-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 15.2   n/a MPO453478  

102480 (1999 TW250)          Discovered 1999-Oct-09 by CSS at Catalina
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1999 TW250 = 2004 SJ30 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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