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243636 (1999 SD17)
Classification: Main-belt Asteroid          SPK-ID: 2243636
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2656516561486493 5.4593e-08  
a 2.390878123160204 1.2248e-08 au
q 1.755737390093121 1.2982e-07 au
i 7.532782125598459 4.9211e-06 deg
node 261.6634434662684 4.3143e-05 deg
peri 130.6293499409616 4.3969e-05 deg
M 188.429018629288 1.0873e-05 deg
tp 2459644.040552133798
(2022-Mar-05.54055213)
4.4324e-05 TDB
period 1350.313420820215
3.70
1.0376e-05
2.841e-08
d
yr
n .2666047707511689 2.0486e-09 deg/d
Q 3.026018856227286 1.5501e-08 au
  Orbit Determination Parameters
   # obs. used (total)      559  
   data-arc span      7540 days (20.64 yr)  
   first obs. used      1999-09-05  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53918  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 12:49:44  

Additional Information
 Earth MOID = .773392 au 
 Jupiter MOID = 2.44976 au 
 T_jup = 3.472 
[ 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 16.1   n/a MPO413139  
diameter diameter 1.982 km 0.342 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.179   0.062 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243636 (1999 SD17)          Discovered 1999-Sep-30 by CSS at Catalina
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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