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90356 (2003 HW12)
Classification: Main-belt Asteroid          SPK-ID: 2090356
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1065839170590327 4.1097e-08  
a 2.24274396066682 1.0116e-08 au
q 2.003703524378461 9.4251e-08 au
i 7.125101188929634 3.922e-06 deg
node 154.3548369192635 3.0832e-05 deg
peri 227.1721767467205 3.5427e-05 deg
M 344.3666440165485 2.0023e-05 deg
tp 2459449.774292042111
(2021-Aug-23.27429204)
6.8453e-05 TDB
period 1226.783625695045
3.36
8.3006e-06
2.273e-08
d
yr
n .2934502812556198 1.9855e-09 deg/d
Q 2.481784396955179 1.1195e-08 au
  Orbit Determination Parameters
   # obs. used (total)      629  
   data-arc span      8685 days (23.78 yr)  
   first obs. used      1997-09-28  
   last obs. used      2021-07-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53824  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 22:04:33  

Additional Information
 Earth MOID = 1.01181 au 
 Jupiter MOID = 2.93424 au 
 T_jup = 3.616 
[ 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 16.19   n/a E2021B10  

90356 (2003 HW12)          Discovered 2003-Apr-24 by Spacewatch at Kitt Peak
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 2003 HW12 = 2002 CQ1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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