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Known Bugs


JIRA ID Summary Recommendation 
GMT-585 Multiple redundant properties/fields for epoch 
GMT-1098 Tab key navigation fails 
GMT-1346 Add ability for user-defined parameters 
GMT-1439 Parameter design for multiple dependency 
GMT-1483 Ability to Calculate and Output Sun Vector to any point 
GMT-1899 Beta Angle is Off by about .003 degrees 
GMT-1933 Earth Fixed RA changed from 0-360 to -180-180 measurement 
GMT-2011 Larger angular momentum errors in 09/15 build 
GMT-2318 STM Parameters are wrong when using Coordinate System other than EarthMJ2000Eq 
GMT-2475 Provide a parameter to check convergence status of a VF13 optimizer 
GMT-2673 User Reported: Parameter Select Dialog Box Silently Changes User's Selected Object 
GMT-2755 ParameterCreateDialog does not close properly after adding string parameter on Mac 


Failing Tests

Failing tests listed as of 09/05/2012.


JIRA ID Test Summary Rec. 


Other Findings


JIRA ID Summary Rec. 
 Inconsistent naming: RadApo/RadPer and VelApoapsis/RadPeriapsis 




ID Requirements 
FRR-38.1.0The system shall allow the user to calculate or set the following object properties with respect to any celestial body in FRR-16:
FRR-      Spacecraft and orbit parameters
FRR-   Altitude (read only)
FRR-   Beta angle (read only)
FRR-   C3 energy (read only)
FRR-   Eccentric anomaly (read/write)
FRR-   Eccentricity (read/write)
FRR-   Orbit energy (read only)
FRR-    Magnitude of angular momentum (read only)
FRR-    Latitude (read only)
FRR-    Longitude (read only)
FRR-                     Local sidereal time (read only)
FRR-                     Mean anomaly (read/write)
FRR-                     Mean hour angle (read only)
FRR-                     Mean motion (read only)
FRR-                     Orbit period (read only)
FRR-                     Radius of apogee (read/write)
FRR-                     Radius of perigee (read/write)
FRR-                     Magnitude of position vector (read only)
FRR-                     Orbit semi-latus rectum (read only)
FRR-                     Orbit semi major axis (read/write)
FRR-                     True anomaly (read/write)
FRR-                     Velocity at apoapsis (read only)
FRR-                     Velocity at periapsis (read only)
FRR-38.2.0The system shall allow the user to calculate the following object properties with respect to any coordinate system in FR-xxx:
FRR-      Spacecraft and orbit parameters
FRR-   Argument of periapsis (read/write)
FRR-   Azimuth (read/write)
FRR-   B dot T (read only)
FRR-   B dot R (read only)
FRR-   B vector angle (read only)
FRR-   B vector magnitude (read only)
FRR-   Declination (read/write)
FRR-   Declination of velocity (read/write)
FRR-   Flight path angle (read/write)
FRR-                     Hyperbolic anomaly (read/write)
FRR-                     Orbit angular momentum components (read only)
FRR-                     Orbit inclination (read/write)
FRR-                     Orbits transition matrix (read only)
FRR-                     3x3 partitions of Orbit STM (read only)
FRR-                     Right ascension (read/write)
FRR-                     Right ascension of the ascending node (read/write)
FRR-                     Right ascension of velocity (read/write)
FRR-                     Magnitude of velocity (read/write)
FRR-                     Components of velocity (read/write)
FRR-                     Components of position (read/write)
FRR-                     Right Asencsion of Outgoing Aysptote (read/write)
FRR-                     Declination of Outgoing Aysptote (read/write)
FRR-38.3.0The system shall allow the user to calculate the following object properties:
FRR-      Spacecraft and orbit parameters
FRR-   Spacecraft Angular velocity components (read/write)
FRR-   Drag coefficient (read/write)
FRR-   SRP coefficient (read/write)
FRR-   Direction cosine matrix components ( read/write)
FRR-   Drag area (read/write)
FRR-   Dry mass (read/write)
FRR-   Elapsed days (read only)
FRR-                     Elapsed seconds (read only)
FRR-                     Euler angles for any sequence (read/write)
FRR-                     Euler angle rates for any sequence (read/write)
FRR-                     Quaternion components (read/write)
FRR-                     SRP area (read/write)
FRR-                     Epoch in TAI modified Julian (read/write)
FRR-                     Epoch in TAI Gregorian (read/write)
FRR-                     Epoch in TDB modified Julian (read/write)
FRR-                     Epoch in TDB Gregorian (read/write)
FRR-                     Epoch in TT modified Julian (read/write)
FRR-                     Epoch in TT Gregorian (read/write)
FRR-                     Epoch in UTC modified Julian (read/write)
FRR-                     Epoch in UTC Gregorian (read/write)
FRR-                     Spacecraft total mass (read only)
FRR-                     Modified Rodriguez parameters (read/write)
FRR-                     Euler Angles (read/write)
FRR-                     Euler Angle Rates (read/write)
FRR-      Impulsive burn parameters
FRR-   Element1 (read/write)
FRR-   Element2 (read/write)
FRR-   Element3 (read/write)
FRR-  Velocity component (read/write)
FRR-   Normal component (read/write)
FRR-   Binormal component (read/write)
FRR-      Tank Properties
FRR-   Pressure (read/write)
FRR-  Volume (read/write)
FRR-   Fuel Density (read/write)
FRR-   Fuel Mass (read/write)
FRR-   Temperature (read/write)
FRR-   RefTemperature (read/write


Interface/Functional Spec


A one-sentence description of the feature


Describe the object at a high level to give the user an intuitive understanding of what the object does.  If there are complex interactions discuss briefly (See ForceModel for example) and point to Remarks sections for further clarification.  
See Also:  Put list of resources and commands that interact with the object here.


See the User Interface Spec spreadsheet for reference information for fields.  This section is usually empty other than the hyperlink.


Include GUI screenshots for each unique GUI configuration.  Describe behavior of GUI for interactive fields when changes in one field can affect the layout or functionality of the GUI.  
The Field Spec referenced in the previous section describes fields in gory detail each GUI item so  this section is usually sparse.  For example, if there are only text boxes on GUI dialog box, there is nothing to say here that is not already said in the field spec and this section only contains a screenshot and a few statements clarifying there is no unique behavior or complex coupling or GUI modes.  However, if you can change a combo box and the GUI configuration changes, that information must be described here.


Describe gory details of the resource.

  • Complex field interactions
  • Items relevant to user but not described in the Fields section above.
  • Group relevant information into subsections and begin the heading with “Behavior When”

Here are examples from existing specs:

  Best Practices for Using Numerical Integrators 

We recommend that you study the performance and accuracy analysis documented later in this section to select a numerical integrator for your application.  You may need to perform further analysis and comparisons for your application.  The comparison data below suggest that the PrinceDormand78 integrator is the best all purpose integrator in GMAT.  When in doubt, use the PrinceDormance78 integrator, and set MinStep to zero so that the integrator’s adaptive step algorithm controls the minimum integration step size.  

Behavior When Changing the Coordinate System 

When you select a Coordinate System for a spacecraft, you specify the origin and axes set with respect to which the state is defined. When you change the coordinate system via the GUI, the GUI performs the conversion from the initial coordinate system to the new system. Similarly, when you specify a state component via the script, that state component is set in the coordinate system defined in the CoordinateSystem field. For example, the following lines would result in the X-component of the Cartesian state of MySat to be 1000, in the EarthFixed system.


Describe the example with a short sentence two and include minimal script for example below

Create Spacecraft aSat;
Create ForceModel aForceModel;
Create Propagator aProp;
aProp.FM              = aForceModel;
aProp.Type            = PrinceDormand78;
aProp.InitialStepSize   = 60;
aProp.Accuracy        = 1e-011;
aProp.MinStep         = 0;
aProp.MaxStep         = 86400;
aProp.MaxStepAttempts = 50;
aProp.StopIfAccuracyIsViolated = true;
Propagate aProp(aSat) {aSat.ElapsedDays = .2};

Test Procedures


If you are making assumptions about how tests will be performed or that other test areas will cover some of this functionality describe that here.

Existing Tests

Describe existing test types using a row for each class of test.




Recommended Additional Tests 

Nominal Tests


  [for Resources only] Cloning the resource in the Mission Sequence, using all non-default values in all field configurations




 Unique Validation



Unique Mode Tests



Unique GUI Tests 

These are tests that are unique to the GUI interface for this feature that are not covered by the standard GUI test template and procedures.





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