| Issue Id |
Release Note |
Category |
| 111341 |
The 2D Graphics window latitude and longitude line labels have been corrected to show the full precision, up to three (3) decimals, when the window is zoomed. Trailing zeros are not displayed. |
2D Graphics |
| 109502 |
Fixed a problem with Intel integrated graphics cards that caused Bing imagery to load bad images on the 3D globe has been corrected. |
3D Graphics |
| 111897 |
Fixed a crash when a glTF model was missing its binary contents has been corrected. |
3D Graphics |
| 112405 |
Large, non-uniform volumetric grids may not be display correctly and generate "Graphics card is unable to display the volumetric object" messages in the message viewer. This issue is corrected. |
3D Graphics |
| 112627 |
The user interface has been corrected so that central body Axes now work correctly when selected as the Reference Axes of the Precessing Spin attitude, when a Planet object of the same central body name exists in the scenario. Previously, the user interface attempted to use the selected axes from the Planet object, even though chosen from the central body. Since Planets support few Axes, the selected Axes were often not found for the Planet, resulting in default axes being used rather than the user's selection. |
3D Graphics |
| 113341 |
Various stability issues were identified on VMWare platforms that related to the 3D rendering of MarkerBatchPrimitive, MTOs, Solar Panel Tool, and Screenshot capabilities. These issues have been fixed. |
3D Graphics |
| 113790 |
3D Windows that use a Data Display Area would appear squished when certain post processing effects like FXAA anti-aliasing or brightness/contrast/gamma correction are enabled. This issue is corrected. |
3D Graphics |
| 113798 |
When using vapor trails in a scenario, resetting the scenario time to the start of the scenario or simply animating the scenario in reverse would not clean up vapor trail puffs. This issue is corrected. |
3D Graphics |
| 113658 |
The "Boundary Target Data", "Boundary Point Access", and "Boundary Minimum Range" data providers have been updated when used with a LineTarget to report on all the LineTarget's points. Previously, the last point would not be reported. |
Access |
| 108461 |
A issue was corrected in the notification processing for vehicles with targeted attitude when child objects use VGT components based upon the vehicle. The issue can arise even when the vehicle's targeting attitude is off, but had been previously configured to be on. |
Analysis Workbench |
| 112865 |
The Scheduled Vector now correctly loads the Reference Axes set in the slew options. |
Analysis Workbench |
| 113052 |
The Time Interval of type "Offset from Time Instant" has been corrected so that it now loads the setting value of "Offset After Time". |
Analysis Workbench |
| 111194 |
An issue where some Astrogator quantities were being double converted to display units resulting in incorrect magnitudes for display in Astrogator white panels and Connect has been addressed. |
Astrogator |
| 113506 |
A crash that occurred after immediately using manually loaded Astrogator sequences with differential corrector profiles has been corrected. |
Astrogator |
| 113679 |
An issue where the CBF burnout conditions for the Astrogator launch segment were not consistent with the segment's final state and copying incorrectly has been corrected. |
Astrogator |
| 112275 |
Fixed a bug where BasicManeuver procedures were not being allowed to follow certain hover procedures in the procedure sequence. This issue is corrected. |
Aviator |
| 112609 |
The Optimize for Speed mode for Aviator had an error where the attitude rates were not being scaled correctly. This issue was corrected. |
Aviator |
| 112904 |
In an effort to control flight path angle, the Flight Path Angle Mode was added to the SmoothTurn Basic Maneuver Strategy. The strategy default (and backward compatibility mode) is to maintain the initial flight path angle, with an option to level off. This is needed when flying a sequence of SmoothTurns due to a small buildup of numerical noise that accrues with each succeeding strategy causing flight path angle to deviate further from the original value. The strategy now actively controls the flight path angle to either maintain the initial condition or to level off with the level off acceleration controlled by the procedure Time Constant (not to exceed the performance model limits). |
Aviator |
| 112182 |
An issue has been corrected regarding the time standard used when evaluating the ITU-R P531-13 ionospheric fading loss model. The ionospheric Total Electron Content (TEC) was previously computed at a time instance offset by roughly 69 seconds from UTC. The fix has a minor impact on the computed loss values, typically on the order of a fraction of a dB. |
Communications |
| 112194 |
The Raised Cosine filter Roll-off Factor value minimum has been changed from 0.0% to 1.0e-7% to avoid division by zero. This may cause backward compatibility issues. |
Communications |
| 112303 |
Using TIREM with the ITU-R P.473 refraction model enabled could cause STK to product incorrect results. This is corrected. |
Communications |
| 112765 |
When using a Radar Object as an interference source in a CommSystem and VOACAP is being used as a propagation model, a crash could occur. This issue is corrected. |
Communications |
| 104543 |
The Export Initial State Tool has been corrected to round numbers for saving in the specified file format, rather than truncating. The IIRVT1 reader has been corrected to read the drag area consistent with the file creation code (to treat the value of area in the file as the value in hundredths of m^2, not cm^2). The EPV reader has been corrected to set the SRP values when imported into an HPOP satellite. |
Connect |
| 107508 |
The SetState FromFile connect command has been corrected to allow the NoProp option to be the last keyword provided in the command. |
Connect |
| 111687 |
The VO Area Connect command no longer automatically displays the Model Area report after completing the analysis. |
Connect |
| 113097 |
The SetLifetime connect command has been fixed so that the SolarFluxFile can be set even if not the first keyword-value pair in the command list. Likewise, the LaserCAT connect command has been fixed so that the Database can be set even if not the first keyword-value pair in the command list. |
Connect |
| 108927 |
Regional acceleration has been corrected to no longer apply attitude-dependent constraints when computing access to the AreaTarget regions in case an asset's attitude depends on the location of the grid instance. Previously, you would have needed to turn regional acceleration off to generate accurate results. |
Coverage |
| 110699 |
The Satellite Database Frequency(.fr) file has been removed from distribution. The content of the file was outdated and unused. |
Data |
| 110701 |
The Satellite Database Write-Up(.wr) file has been removed from distribution. The content of the file was outdated and unused. |
Data |
| 112021 |
The code sample Comm_ConnectCommands.m did not run correctly due to an incorrect call to set the time interval. This is corrected. |
Data |
| 105851 |
The SDF_RM Connect Command has been updated with a new GetServerProps option. This option replaces GetServerInfo, which has been deprecated. |
Documentation |
| 112817 |
At low elevation angles the MODTRAN-based table interpolation method was potentially drawing poor samples to interpolate between, but the path through the atmosphere could be geometrically reversed to provide identical transmission results with better sampling to avoid the low elevation sampling issues. |
EOIR |
| 113373 |
EOIR is now properly listed in the unlicensed capabilities dialog that pops up when a scenario is loading containing a feature that does not have a proper license. |
EOIR |
| 107322 |
The Ballistic propagator has been corrected when using the Fixed Apogee Alt option to define the trajectory by its apogee altitude when the launch and impact points are the same location. In this case, the inertial trajectory is part of an ellipse while the trajectory in the fixed frame looks rectilinear. |
General |
| 109339 |
3D Window Access text was not being shown in the Data Display area. This issue is corrected. |
General |
| 109630 |
On Microsoft Windows, local time-to-UTC time conversions now use the timezone rules stored as part of the Windows operating system (in its registry). This means that local times in the future and in the past will respect the appropriate daylight savings time (DST) boundaries for the date in question. Previously, the local-to-UTC time offset was computed as a constant value, with this constant value being used for all local-to-UTC conversions in the future and past, as if DST boundaries didn't exist. These rules in Windows are updated over time as governments update their daylight savings time decisions. |
General |
| 112860 |
While 3D editing, the 3D Edit toolbar buttons could become disabled. This issue is corrected. |
General |
| 113511 |
AdvCAT has been corrected to use the correct hardbody radius when an OEM or ITC file is used indirectly to specify the ephemeris of a primary or secondary satellite, that is, when it is used as part of the STKExternal propagator which is then used by (i) a Satellite in the scenario; (ii) a Satellite's *.sa file; or (iii) a propagator definition file *.pg to define a primary or secondary object. Previously, the default radius of 1.0 meter was used. Note that using an OEM or ITC file directly, by choosing it as the primary or secondary, did not suffer from this problem. |
General |
| 113836 |
A crash could occur when animating with 3D dynamic displays using data providers that produce both numerical and textual data dependent on time. This issue is corrected. |
General |
| 112029 |
The segment boundary times displayed for the Spice propagator will now display times through microseconds if the application has been set to display times to that precision. |
General Astro |
| 112102 |
The application no longer crashes when deleting an asteroid from the component browser. |
General Astro |
| 112337 |
The rounding of dates just before the start of a leap second is now correct, reporting the start of the leap second, not the end of the leap second. |
General Astro |
| 112555 |
STK now supports the value "Linear" for the INTERPOLATION keyword in OEM files. It also expects the INTERPOLATION_DEGREE be also specified with a value of 1, as required by the CCSDS spec. |
General Astro |
| 112936 |
The file reader for the IIRV, IIRVT1, IIRVT9, NASAIIRV and EPV initial state formats have been updated to no longer require a blank line between lines of content (as the original spec required). However, the blank lines are still included when exporting these formats (per the original spec). |
General Astro |
| 112960 |
The default SGP4 routine, as set in Edit->Preferences under Propagator Defaults for SGP4, is now honored by AdvCAT, the Close Approach tool, the Generate TLE tool, the Launch Window Analysis tool, and the LaserCAT tool. Previously, these would default to using the internal SGP4 routine. |
General Astro |
| 112961 |
SGP4 plugins that use AFSPC-provided libraries have corrected an issue wherein the function signature for the plugin's call to generate an ephemeris was not matched to STK's expected function signature, resulting in a crash. |
General Astro |
| 113017 |
Several connect commands have been updated to allow the setting of the SGP4 routine to use when propagating GP data like TLEs, including using the default SGP4 routine as set under Edit->Preferences() Propagator Defaults under SGP4. |
General Astro |
| 113284 |
The STK Attitude file reader for *.a files has been corrected when reading files that use the TimeFormat keyword in addition to the ScenarioEpoch keyword, when the value of ScenarioEpoch does not match the scenario's own epoch. Previously, the mismatch between the file's value of ScenarioEpoch and the scenario's own epoch resulted in the wrong time grid for the data. Additionally, the AttitudeTimeECFVector and AttitudeTimeECIVector formats also produced the wrong time grid because of the mismatch, even when not using the TimeFormat keyword. |
General Astro |
| 113816 |
The load code for vehicle targeted attitude, for the targeted slew mode, has been corrected to properly set the slew mode when the mode is FixedRate. Previously, the slew mode would be saved correctly, but not loaded correctly, resulting in the slew mode setting being FixedTime instead. |
General Astro |
| 113444 |
RCS graphics on vehicles not properly turn on/off based on valid ephemeris times and display times. |
General Graphics |
| 93122 |
Ground ellipse sets did not properly draw their boundary or center point when the animation time was exactly on one of the times of the ellipses in the ellipse set. This is corrected. |
General Graphics |
| 112887 |
The KML tool failed to export Figures of Merit graphics. This is corrected. |
HTML Page |
| 113635 |
The 2525B Symbol Server installed by STK contained an invalid URL when the Control Panel was displayed. This URL is updated. |
Install |
| 112600 |
The object model interfaces for the atmospheric density plugin point have been corrected to fix the SunPosition property and additions have been made to support variable area and n-plate drag. |
Object Model |
| 112840 |
A True Course hint option was added to the Launch Procedure which can be used to improve behavior in situations when the launch direction is pure vertical and thus a True Course is not mathematically defined. Since following procedures can make use of the previous procedure's final true course in order to define the initial flight path for the following procedure, this option becomes handy to establish a desired launch direction for vertically launched vehicles. Previous versions defaulted to North, which isn't necessarily the desired trajectory. |
Object Model |
| 113122 |
Fixed an Object Model issue causing list enumerations to sometimes fail for IAgCrdnIntervalVectorCollection. |
Object Model |
| 113124 |
The Python API now supports executing STKDesktop automation on separate execution threads. |
Object Model |
| 113333 |
The SetCurrentUnit method of the IAgUnitPrefsDimCollection interface now works for the dimension name of "Date", in addition to "DateFormat". |
Object Model |
| 113351 |
Error messages have been improved in several data provider collection classes when index is out-of-bounds. |
Object Model |
| 112825 |
An intermittent issue where VOACAP output file may not get reported has been corrected. |
Radar |
| 112022 |
An application crash in the Report & Graph Manger when the style location in the file system resulted in a long file path has been corrected. |
Reports and Graphs |
| 112964 |
The imagery data used in the "Introduction to STK Pro" tutorial is updated so it loads correctly. |
Terrain and Imagery |
| 113369 |
The Ballistic propagator has been corrected when the transfer type is Fixed Delta-V and Fixed Delta-V Min Ecc and the impact and launch points are nearly identical. Previously, the iterative algorithm would fail to find a solution. |
User Interface |
| 113663 |
A problem has been corrected in the Access Tool user interface where the application could crash if an existing access, computed using adaptive step control, was switched to use Fixed step control and then recomputed, before first clearing/removing the access. |
User Interface |