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312090 (2007 TW99)
Classification: Main-belt Asteroid          SPK-ID: 2312090
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1548903251143751 4.8387e-08  
a 2.382286694839917 1.4567e-08 au
q 2.013293534160512 1.1023e-07 au
i 3.12746887826245 7.019e-06 deg
node 170.8934434255044 9.8123e-05 deg
peri 311.5779104620443 0.00010331 deg
M 90.73529821343257 3.0423e-05 deg
tp 2458661.996444394408
(2019-Jun-27.49644439)
0.00011206 TDB
period 1343.041599217144
3.68
1.2319e-05
3.373e-08
d
yr
n .2680482869702943 2.4586e-09 deg/d
Q 2.751279855519322 1.6823e-08 au
  Orbit Determination Parameters
   # obs. used (total)      184  
   data-arc span      6067 days (16.61 yr)  
   first obs. used      2003-09-18  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55726  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:26:00  

Additional Information
 Earth MOID = 1.03054 au 
 Jupiter MOID = 2.32026 au 
 T_jup = 3.519 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457356.5 (2015-Nov-30.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1552632877319232 4.8444e-08  
q 2.012794145544302 1.1049e-07 au
tp 2457319.950463610091
(2015-Oct-24.45046361)
0.00010669 TDB
node 170.9027211848071 9.813e-05 deg
peri 311.879601141039 0.00010328 deg
i 3.126912611098361 7.0187e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      184  
   data-arc span      6067 days (16.61 yr)  
   first obs. used      2003-09-18  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55726  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:26:00  

Additional Information
 Jupiter MOID = 2.32026 au 
 T_jup = 3.519 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.346829628693335E-15 -5.326579980005718E-15 7.080022999044734E-13 -2.766715030996303E-14 1.361510145912792E-13 -1.807173002023505E-15
q -5.326579980005718E-15 1.22081484508327E-14 -1.254778616231827E-12 6.096455044248912E-14 -2.022153328045574E-13 3.971198751962731E-15
tp 7.080022999044734E-13 -1.254778616231827E-12 1.138195965280644E-8 -4.131266894755654E-11 3.453223659603238E-9 -2.978159386733683E-12
node -2.766715030996303E-14 6.096455044248912E-14 -4.131266894755654E-11 9.629410432272705E-9 -9.6258771256078E-9 2.706801286296677E-10
peri 1.361510145912792E-13 -2.022153328045574E-13 3.453223659603238E-9 -9.6258771256078E-9 1.066597915658748E-8 -2.710784317500263E-10
i -1.807173002023505E-15 3.971198751962731E-15 -2.978159386733683E-12 2.706801286296677E-10 -2.710784317500263E-10 4.926166189957643E-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 17.8   n/a MPO368144  

312090 (2007 TW99)          Discovered 2007-Oct-08 by Spacewatch at Kitt Peak
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

Alternate Designations
 2007 TW99 = 2003 SB348 = 2005 ET320 = 2005 EW212 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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