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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1389826521915782 7.5202e-08  
a 2.748478322750441 4.9823e-08 au
q 2.366487515963525 2.3593e-07 au
i 4.810405600150852 1.3231e-05 deg
node 178.4232317585759 0.00013166 deg
peri 129.5970012348642 0.00014538 deg
M 286.1973483980504 6.3068e-05 deg
tp 2458941.697912723435
(2020-Apr-02.19791272)
0.00029512 TDB
period 1664.320263761253
4.56
4.5255e-05
1.239e-07
d
yr
n .2163045225360797 5.8816e-09 deg/d
Q 3.130469129537358 5.6748e-08 au
  Orbit Determination Parameters
   # obs. used (total)      88  
   data-arc span      6074 days (16.63 yr)  
   first obs. used      2002-10-10  
   last obs. used      2019-05-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64269  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:29:09  

Additional Information
 Earth MOID = 1.35472 au 
 Jupiter MOID = 2.12966 au 
 T_jup = 3.328 
[ show covariance matrix ]

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 17.1   n/a MPO397228  
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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