ExternalVendorCode/trick
1
0
Fork 0
mirror of https://github.com/nasa/trick.git synced 2025-03-21 11:35:19 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Escaped underscores to make the doc look nicer. Ref #108

Browse Source
This commit is contained in:
John M. Penn 2015-08-19 14:01:36 -05:00
parent e7185a152e
commit 74f8498404
2 changed files with 22 additions and 26 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

46
trick_sims/SIM_sun/README.md
View File

@ -1,22 +1,22 @@
# SIM_sun
# SIM\_sun
![Picture of Sun](images/sun.png)
### The Simulation
SIM_sun is a simulation of the Sun's movement across the sky.
SIM\_sun is a simulation of the Sun's movement across the sky.
Given the location (latitude, longitude) of an observer on the
Earth, the timezone (offset from UTC), and a starting local time,
this simulation calculates the position of the Sun in the sky over time.
### Inputs
Variable | Type | Units
----------------------------------------------|---------------|-------
sun\_predictor.sun.observer\_latitude | double | d
sun\_predictor.sun.observer\_longitude | double | d
sun\_predictor.sun.observer\_offset\_from\_UTC| int | hr
sun\_predictor.sun.local\_time | CALENDAR_DATE | --
Variable | Type | Units
-----------------------------------------------|----------------|-------
sun\_predictor.sun.observer\_latitude | double | d
sun\_predictor.sun.observer\_longitude | double | d
sun\_predictor.sun.observer\_offset\_from\_UTC | int | hr
sun\_predictor.sun.local\_time | CALENDAR\_DATE | --
### CALENDAR_DATE
### CALENDAR\_DATE
Member | Type | Units
---------------------------|--------------------|---------
year | int | --
@ -26,21 +26,19 @@ hour | int | hour
min | int | min
sec | double | s
### Outputs
Variable | Type | Units
-------------------------------------------------|---------------|--------
sun\_predictor.sun.JD | double | day
sun\_predictor.sun.right\_ascension | double | d
sun\_predictor.sun.declination | double | d
sun\_predictor.sun.hour\_angle | double | d
sun\_predictor.sun.local\_sidereal_time | double | s
sun\_predictor.sun.sidereal\_time\_at\_Greenwich | double | s
sun\_predictor.sun.solar\_azimuth | double | d
sun\_predictor.sun.solar\_elevation | double | d
sun\_predictor.sun.local\_time | CALENDAR_DATE | --
sun\_predictor.sun.utc | CALENDAR_DATE | --
Variable | Type | Units
-------------------------------------------------|----------------|--------
sun\_predictor.sun.JD | double | day
sun\_predictor.sun.right\_ascension | double | d
sun\_predictor.sun.declination | double | d
sun\_predictor.sun.hour\_angle | double | d
sun\_predictor.sun.local\_sidereal\_time | double | s
sun\_predictor.sun.sidereal\_time\_at\_Greenwich | double | s
sun\_predictor.sun.solar\_azimuth | double | d
sun\_predictor.sun.solar\_elevation | double | d
sun\_predictor.sun.local\_time | CALENDAR\_DATE | --
sun\_predictor.sun.utc | CALENDAR\_DATE | --
**NOTE:** 0 <= Solar Azimuth < 360 degrees. North = 0, East = 90, South = 180, West = 270.
@ -52,5 +50,3 @@ sun\_predictor.sun.utc | CALENDAR_DATE | --
### References
Meeus, Jean, (1998) "Astronomical Algorithms", Willmann-Bell, Inc. ISBN 0-943396-61-1.

2
trick_sims/SIM_sun/RUN_Winter/RESULTS.md
View File

@ -8,7 +8,7 @@ Variable | Value
sun\_predictor.sun.observer\_latitude | 29.55298 (d)
sun\_predictor.sun.observer\_longitude | 95.09379 (d)
sun\_predictor.sun.observer\_offset\_from\_UTC | -6 (hours)
sun\_predictor.sun.local\_time.year | 2006
sun\_predictor.sun.local\_time.year | 2006
sun\_predictor.sun.local\_time.month | 12
sun\_predictor.sun.local\_time.day | 21
sun\_predictor.sun.local\_time.hour | 0