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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1539230706721749 4.7173e-08  
a 2.384684345455243 1.4693e-08 au
q 2.017626408418906 1.0679e-07 au
i 3.129654096990736 5.9605e-06 deg
node 170.8196370033689 9.7554e-05 deg
peri 311.954525917385 0.00010202 deg
M 196.4617642709179 2.959e-05 deg
tp 2460007.528666096079
(2023-Mar-04.02866610)
0.0001138 TDB
period 1345.069664069215
3.68
1.2432e-05
3.404e-08
d
yr
n .267644129978293 2.4736e-09 deg/d
Q 2.751742282491579 1.6955e-08 au
  Orbit Determination Parameters
   # obs. used (total)      215  
   data-arc span      6124 days (16.77 yr)  
   first obs. used      2003-09-18  
   last obs. used      2020-06-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5746  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 06:28:36  

Additional Information
 Earth MOID = 1.03533 au 
 Jupiter MOID = 2.3178 au 
 T_jup = 3.518 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.85   n/a E2021B25  

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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