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344009 (2011 SH99)
Classification: Main-belt Asteroid          SPK-ID: 2344009
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1381643430676956 5.9667e-08  
a 2.747897221749686 2.9612e-08 au
q 2.368235807289095 1.7318e-07 au
i 4.811063484708104 9.707e-06 deg
node 178.3483778336581 5.8004e-05 deg
peri 129.3197913291027 7.5814e-05 deg
M 98.67403021812979 4.2232e-05 deg
tp 2458940.463587693014
(2020-Mar-31.96358769)
0.00019856 TDB
period 1663.792469686221
4.56
2.6894e-05
7.363e-08
d
yr
n .2163731394143727 3.4975e-09 deg/d
Q 3.127558636210277 3.3703e-08 au
  Orbit Determination Parameters
   # obs. used (total)      164  
   data-arc span      6586 days (18.03 yr)  
   first obs. used      2002-10-10  
   last obs. used      2020-10-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52678  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 08:30:41  

Additional Information
 Earth MOID = 1.3567 au 
 Jupiter MOID = 2.13046 au 
 T_jup = 3.328 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458259.5 (2018-May-21.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1389464602522749 5.9879e-08  
q 2.365687711701159 1.7442e-07 au
tp 2458942.356134576205
(2020-Apr-02.85613458)
0.00019712 TDB
node 178.4276981639408 5.8008e-05 deg
peri 129.7706215059595 7.5653e-05 deg
i 4.811250310432813 9.7095e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      164  
   data-arc span      6586 days (18.03 yr)  
   first obs. used      2002-10-10  
   last obs. used      2020-10-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52678  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 08:30:41  

Additional Information
 Jupiter MOID = 2.13046 au 
 T_jup = 3.328 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.585499343352835E-15 -1.033974771399108E-14 6.67247452775877E-12 -3.073872907049507E-14 1.536048366912823E-12 -2.531588982768664E-15
q -1.033974771399108E-14 3.042304912518316E-14 -2.085677646306592E-11 9.196058720809788E-14 -4.884774308007776E-12 9.391408494069582E-15
tp 6.67247452775877E-12 -2.085677646306592E-11 3.885671508059425E-8 -1.292069431223084E-10 9.571706090302983E-9 -1.501993997840821E-11
node -3.073872907049507E-14 9.196058720809788E-14 -1.292069431223084E-10 3.364903386758807E-9 -3.38276817546037E-9 1.528286084478284E-10
peri 1.536048366912823E-12 -4.884774308007776E-12 9.571706090302983E-9 -3.38276817546037E-9 5.72333213317332E-9 -1.560388278744091E-10
i -2.531588982768664E-15 9.391408494069582E-15 -1.501993997840821E-11 1.528286084478284E-10 -1.560388278744091E-10 9.427352186542775E-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 17.0   n/a MPO476588  
diameter diameter 2.180 km 0.318 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.045   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

344009 (2011 SH99)          Discovered 2007-Nov-13 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20121029/Numbers.arcLast Updated: 2012-11-08

[ show close-approach data ]
Alternate Designations
 2011 SH99 = 2010 PD43 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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