This is a sample of the complete e-mail report.
You also get a simplified listing on the web
(example).
School Name: Luther Machen Elementary School
Class Name: Teacher Name here
City: Hampton
State: VA
Country: USA
Daytime Overpasses:
Hampton lat= 37.05 N long= 283.71 E
spacecraft is - TERRA
| universal time |
local |
viewing |
sat azm |
relative |
solar |
satellite position |
sat
|
|---|
| da | mo | year | hr | mn |
time |
zenith |
fr. north |
azimuth |
zenith | lat | long |
dir
|
|---|
| 24 | 3 | 2001 | 15 | 44 | 10:44 | 42.77 | 99.30 | 46.08 | 40.52 | 35.88 | 289.92 | des
| | 25 | 3 | 2001 | 16 | 27 | 11:27 | 30.83 | 286.65 | 125.33 | 36.27 | 37.76 | 279.64 | des
| | 26 | 3 | 2001 | 15 | 32 | 10:32 | 55.06 | 97.98 | 42.87 | 41.25 | 35.47 | 292.86 | des
| | 26 | 3 | 2001 | 17 | 09 | 12:09 | 68.29 | 292.42 | 112.86 | 34.44 | 40.45 | 269.64 | des
| | 27 | 3 | 2001 | 16 | 15 | 11:15 | 9.89 | 285.79 | 129.51 | 36.36 | 37.13 | 282.51 | des
| | 28 | 3 | 2001 | 15 | 20 | 10:20 | 63.81 | 95.81 | 40.74 | 42.12 | 35.24 | 295.85 | des
| | 28 | 3 | 2001 | 16 | 57 | 11:57 | 61.67 | 290.54 | 116.18 | 33.78 | 39.59 | 272.42 | des
| | 29 | 3 | 2001 | 16 | 03 | 11:03 | 13.65 | 102.06 | 49.23 | 36.65 | 36.56 | 285.40 | des
| | 30 | 3 | 2001 | 16 | 45 | 11:45 | 52.65 | 288.64 | 119.63 | 33.34 | 38.79 | 275.24 | des
| | 31 | 3 | 2001 | 15 | 50 | 10:50 | 34.04 | 100.96 | 45.33 | 37.17 | 36.06 | 288.31 | des
|
********************************************************************************
The CERES S'COOL Project - Students' Cloud Observations On-Line
MS 420, NASA Langley Research Center
Hampton, VA 23681-2199
Tel.: (757) 864-5682 Fax.: (757) 864-7996
http://asd-www.larc.nasa.gov/SCOOL/ scool@lists.nasa.gov
********************************************************************************
Header
The first five lines identify the school requesting the report. Then a line
identifies whether this is for daytime or night-time overpasses.
Then the city and latitude/longitude of the site are listed.
It should always correspond to your city and
lat/long. Note that longitude can be measured either east or west to the
180th meridian (180 degrees) or 0 to 360 degrees East. For example, the
longitude of NASA Langley can be reported three different ways: 76 W, or
-76 E, or 284 E. The latter method is the one used in the overpass report.
The last line of the header identifies the spacecraft whose orbit was computed.
Date & Time
The first 3 columns give you the date of the satellite overpass:
- da is the day of the month
- mo is the month (i.e., 4 is April)
- year is the year
The next 3 columns tell you what time (in two ways) the satellite passes over:
- hr is the hour of the day in Universal Time (UT), i.e., at the Greenwich Meridian
- mn is the minute of the hour in
UT also. Report Universal Time on your observation
report. You may want to keep a second clock set to UT in your classroom.
- local time is the time at which the satellite
passes over in your local time, i.e., the time on your watch or clock. This
is given on a 24 hour clock. 15h45 means 15 hours and 45 minutes, or 3:45 in
the afternoon. This can be either Local
Standard Time or Local Daylight
Time; depending whether or not Daylight Saving Time is in effect.
There will often, as in this example, be more than one overpass each day.
You can pick the most convenient overpass to fit your schedule; or you
can use a different overpass time with different classes.
Position
The next 7 columns give information about the positions of the Sun and the
satellite. This information is not needed to make an observation, but may
be useful if you want to know where the satellite actually is.
- view zenith is measured in degrees.
Click here for a definition and
picture. With
- sat azm fr. N, the
Satellite Azimuth from North, also
measured in degrees, it tells you where in the sky to look for the position
of the spacecraft. Note that you will most likely not be able to actually
see the spacecraft during the day (see the FAQ).
- relative azimuth is the difference between the
satellite and solar azimuths from north. See
a picture.
- solar zenith
is similiar to viewing zenith; but gives the location of the sun. You should
be able to see the sun unless the clouds are opaque.
- satellite position is measured in degrees of
latitude and longitude. This is the
position on the Earth of the point directly
below the spacecraft. This will rarely be exactly at your location. The
instruments on the satellite scan around as the spacecraft orbits, so they
can see a wider area than just the point directly below them.
- sat dir is the satellite direction. asc
stands for ascending, which means the satellite is moving from south to north.
des stands for descending, meaning the satellite is moving from north
to south.
|