ODTK 6.3.2 Release Notes These release notes contain information on system and disk space requirements for installing and running ODTK; information on new capabilities and features introduced in the current version of ODTK, including issues resolved from the prior version; transition information -- cautions, workarounds and operational tips -- to help maximize your successful use of the product; and a brief introduction to online help resources. ODTK 6.3.2 Features ODTK 6.3.2 is a maintenance release containing a few new features and various bug fixes. Note that this is our first release where we no longer support Windows XP. Deep Space OD Improvements Added support for processing DSN Delta DOR (Delta Differenced One-way Range) tracking data. These measurements are typically available from the NASA Deep Space Network. Added support for using the JPL DSN media corrections for the troposphere and ionosphere. The DSN tracking data reader now has the capability to compress the Total Count Phase (TCP) measurements based on a user specified sub sample rate. Other Measurement Model Improvements Added ionosphere refraction corrections to the elevation angle measurement model. Added the ability to generate relative optical observations from individual optical observations and utilize them when doing simultaneous OD on multiple satellites. Usability Added support for importing STK targets and place objects into an ODTK scenario. This is similar to our existing support for importing STK facilities. Reporting and Graphing We added several new graph styles (of existing data) that we have found useful in our processing. Atmospheric Density Consistency Facility Location Cartesian Facility Location LLA Residuals by Azimuth Angle Residuals by Elevation Angle Residuals by Range Residuals by Time of Day Retroreflector Delay Orbit Determination Methods Orbit determination methods can be divided into three types: initial orbit determination (IOD) batch least squares differential correction (LS) optimal orbit determination (OOD) Operationally, the order in which these methods are used defines a dependency tree: IOD is input to LS, and LS is input to OOD, i.e., IOD ==> LS ==> OOD Using ODTK The ODTK User Interface is representative of current trends in Windows user interfaces and, as such, possesses features that many users will find familiar. Therefore, some features will be given only minimum attention here. Follow the links below to help on: Workspace Management The Object Browser Object Properties The Message Viewer ODTK Menus Miscellaneous Toolbar Buttons