JPS6449910A - Yaw attitude determining method for three-axial stable satellite - Google Patents

Yaw attitude determining method for three-axial stable satellite

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Publication number
JPS6449910A
JPS6449910A JP62207042A JP20704287A JPS6449910A JP S6449910 A JPS6449910 A JP S6449910A JP 62207042 A JP62207042 A JP 62207042A JP 20704287 A JP20704287 A JP 20704287A JP S6449910 A JPS6449910 A JP S6449910A
Authority
JP
Japan
Prior art keywords
time
sun
yaw attitude
angle
switch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP62207042A
Other languages
Japanese (ja)
Inventor
Toru Okanuma
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP62207042A priority Critical patent/JPS6449910A/en
Publication of JPS6449910A publication Critical patent/JPS6449910A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To accurately find the time when the segment connecting the center of the earth and the position of the satellite and the direction of the sun cross each other at right angles and to accurately determine the yaw attitude by finding the time when the segment and sun direction cross each other at right angles by using a sun sensor and a decision device. CONSTITUTION:A reference angle calculating device 3 calculates a reference detection angle momentarily. A comparator 4 subtracts the output of the reference angle calculating device 3 from the detection angle of a 1st sun sensor 1 and inputs the difference to a switch 6. This input value is accurately equal to the yaw attitude angle when the segment connecting the center of the earth and satellite position and the sun direction cross each other at right angles. The time of the crossing is the time when the sign of the detection angle of the 2nd sun sensor 2 is inverted, i.e. the time when the decision device 5 outputs a signal, and the switch 6 is closed at this time, so that the output of the switch 6 becomes the yaw attitude angle.
JP62207042A 1987-08-20 1987-08-20 Yaw attitude determining method for three-axial stable satellite Pending JPS6449910A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62207042A JPS6449910A (en) 1987-08-20 1987-08-20 Yaw attitude determining method for three-axial stable satellite

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62207042A JPS6449910A (en) 1987-08-20 1987-08-20 Yaw attitude determining method for three-axial stable satellite

Publications (1)

Publication Number Publication Date
JPS6449910A true JPS6449910A (en) 1989-02-27

Family

ID=16533245

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62207042A Pending JPS6449910A (en) 1987-08-20 1987-08-20 Yaw attitude determining method for three-axial stable satellite

Country Status (1)

Country Link
JP (1) JPS6449910A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998038654A1 (en) 1997-02-25 1998-09-03 Tdk Corporation Oxide magnetic material, ferrite particle, sintered magnet, bonded magnet, magnetic recording medium and motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998038654A1 (en) 1997-02-25 1998-09-03 Tdk Corporation Oxide magnetic material, ferrite particle, sintered magnet, bonded magnet, magnetic recording medium and motor

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