INFORMATION from BSGC
The satellite observation by 1m telescope using TEL data II: LRE satellite (2002/01/09)

We carried out the observation of EGP stelite.
We measured the 200 position of LRE.
Observation:
*DATE: 2002/01/08
*TIME: 13:00 - 17:00(UTC)
*LRE position:

      UTC         Az     El          km
     13:00       90.1  +38.7     31,300
     14:00       90.3  +45.4     34,800
     15:00       91.8  +52.0     36,100
     16:00       94.4  +58.1     35,300
     17:00       98.0  +62.7     32,300
     18:00      102.5  +64.3     26,800
RESULTS:
*FIG1: The variation of the LRE position on CCD (pixel).
*FIG2: The time variation of X.
*FIG3: The time variation of Y.
*FIG4: The time variation of the brightness of LRE.
Fig1, Fig2, Fig3, Fig4


The satellite observation by 1m telescope using TLE data I : EGP satellite (2002/01/08)

We carried out the observation of EGP stelite.
We tracked EGP by using TLE data.
(Information about EGP)

We plotted the peak position of EGP images (early 256 of all 443 images).
*EXPORSURE TIME = 0.1 sec
*CCD AP10 (3x3 binning)
*The unit of X and Y axis are pixel ( Reading value x 3, so Mini =1 and Max = 2048)
There are the jump of EGP position (from 122th image)
fig2

The sample images (2th, 111th, 121th, 122th and 123th).
Each image size are about 34' x 10'. The EGP locate near the center of each image.
*Although the very sort exporsure time, the satellite images are wrong (trakking error ?).
fig3


Get the many images in the same position for tracking check. (2002/01/06)

OBSERVATION:
*EXPORSURE TIME = 0.2 sec
*CCD AP10(2x2 binning)
*We got 737 images for 35 minits.
*target star position : about HA=0h, DEC 0degree.
We measured the peak position of target star.

FIG1:Time variation of X (pixel). ( Reading value x 2, so Mini =1 and Max = 2048). no use the mesh data
FIG2:Time variation of X (pixel). ( Reading value x 2, so Mini =1 and Max = 2048). use the mesh data
FIG3:The magnification of Fig2 (near 14:10)
FIG4:The magnification of Fig2 (near 14:15)

We found the periodic tracking error of about 650 sec.
It is inferred that this error was coused by parametar "TRACKINT" in config file "telescoped.cfg".
(What is this parameter?)
Fig1,2,3,4


The variation of star shape with EL(2001/12/23)
We examined the variation of star shape with EL at same AZ.

Figure:
*all figure are same size (30pixelx30pixel)
*The contour is log scale and the interval is 0.03.
*top:north, right:west
RESULT1:
1. At EL90 and AZ180, we serach the best focus position and set.
2. At EL90, get image.(Fig1)
3. At EL75, get image.(Fig2)
4. At EL60, get image.(Fig3)
5. At EL45, get image.(Fig4)
5. At EL30, get image.(Fig5)
RESULT2:
1. At EL30 and AZ180, we serach the best focus position and set.
2. At EL30, get image.(Fig6)
3. At EL45, get image.(Fig7)
4. At EL60, get image.(Fig8)
5. At EL75, get image.(Fig9)
5. At EL90, get image.(Fig10)
RESULT2:
1. At EL27 and AZ342 (north sky), we serach the best focus position and get image.
(Fig11)