Vixen Sphinx SXP User Manual

Page 49

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 ①  ②  ③    ④      ⑤     ⑥    ⑦  ⑧ ⑨

NOAA 1

1 04793U 70106A 10136.02215887 -.00000031 00000-0 10000-3 0 5176

2 04793 102.0931 137.9363 0031946 163.7080 196.5027 12.53938386804630

  ②   ⑩    ⑪    ⑫    ⑬    ⑭     ⑮     ⑯

Name of Satellite
Satellite Number
International Designation
Epoch Year & Day Fraction
1st derivative of Mean Motion
2nd derivative of Mean Motion
Radiation Pressure Coefficient
Ephemeris Type
Element Number & Checksum
Inclination
Right Ascension of the Ascending Node
Eccentricity (decimal place)
Argument of Perigee
Mean Anomaly
Mean Motion
Revolution Number at Epoch & Checksum

Chapter 4 AUTOMATIC GOTO SLEWING

This allows observing a satellite pass.

Entering the Orbital Elements of the Satellite
STAR BOOK TEN allows you to enter orbital elements of up to 10 satellites for Go-To slewing. You can access the orbital elements of satellites
from commercially available astronomy magazines and internet websites. Use the most recent ones to prevent inaccurate slewing to the satellite
and to diminish tracking errors. Besides, it is very important to set your STAR BOOK TEN to be punctual to the second.

The orbital elements of the satellites are typically represented in a format that is called “Two Line Elements”. Sampling parameters related
to the orbital elements of the satellite and its name only from the TLE format and enter them into the STAR BOOK TEN.

Of the above parameters in TLE format, are utilized for determining orbital elements. (The parameters
are not necessary for the STAR BOOK TEN.) The number after the decimal is determined by the number of spaces available and round off
at that point.

Note : Use the or zoom key to shift the cursor in the vertical direction while you enter alphabets and numbers.
(The • direction keys are not allocated for moving the cursor.)

Call up “Object Menu” and choose “Satellite” with the or direction key. Press the (or )key to access the entry dialog box.

With the or direction key, move the cursor to an entry space where no satellite names are set. (The second line is chosen here.)

Press the key to display the “New Object” dialog box and move the cursor to an available entry space with the or direction key.
Enter the name of the satellite and its orbital elements by alphabet and number with the • direction key.
.

Satellite (Artificial Satellite)

1

2
3

1

1

2

2

3

3

The orbital elements of the weather satellite NOAA is shown in TLE format as an example.

1 04793U 70106A 10136.02215887 -.00000031 00000-0 10000-3 0 5176

2 04793 102.0931 137.9363 0031946 163.7080 196.5027 12.53938386804630

① ④ ⑤ ⑩ ⑪ ⑫ ⑬ ⑭ ⑮

② ③ ⑥ ⑦ ⑧ ⑨ ⑯

The TLE format consists of the following structure.

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