The TRMM (Tropical Rain Measuring Mission) Study shows the feasibility of a conically scanned, total power radiometer. The heritage of the TRMM radiometer is the Special Sensor Microwave/Imager (SSM/I) flying for the Air Force DMSP

Lobl, E.

English

NASA Technical Reports Server

HUGHES
Space and Communications Group
GOVERNMENT ELECTRONICS SYSTEMS DIVISION HS256C-1045-0061
FINAL REPORT
FOR THE
HIGH RESOLUTION MICROWAVE
SPECTROMETER SOUNDER
(HIMSS)
INSTRUMENT PROGRAM
APPENDIX : TRMM STUDY
AN INSTRUMENT FOR NASA'S
TROPICAL RAINFALL MEASURING MISSION
APRIL 1991
https://ntrs.nasa.gov/search.jsp?R=19910016234 2020-03-19T18:08:57+00:00Z

APRIL 1991
HIGH RESOLUTION MICROWAVE
SPECTROMETER SOUNDER
(HIMSS)
FINAL REPORT
APPENDIX • TRMM STUDY
(A RADIOMETER FOR NASA'S
TROPICAL RAINFALL MEASURING MIS SION)
CONTRACT NO. NAS8-38175
CONTRACT MOD 07
SUBMITTED TO:
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION
GEORGE C. MARSHALL SPACE FLIGHT CENTER
BY:
HUGHES
SPACE AND COMMUNICATIONS GROUP
GOVERNMENT ELECTRONICS SYSTEMS DIVISION
HS256C-1045-0061

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DAT A HANDLING
REQUIREMENTS HUGHES
(BASELINE)
SPIN RATE:
SPIN PERIOD:
ACTIVE SCAN ANGLE:
ACTIVE SCAN PERIOD:
44 RPi"I
1.37 SEC
140 DEGREES
0.53 SEC
VIDEO DATA
CH FREQ, GHz QTY INT TIME, mSEC SAMPLES/SCAN
10.7 2 5.8 184
19.4 2 5.8 184
22.2 1 5.8 92
37 2 5.8 184
85.5 2 5.8 184
CALIBRATION DATA
828
CH FREQ, GHz COLD WARM POLARIZATION TOTAL
SAMPLES SAMPLES
10.7 5 5 2 20
19.4 5 5 2 2O
22.2 5 5 1 10
37 5 5 2 20
85.5 5 5 2 20
GAIN DATA
STATUS TELEMETRY
PACKET HEADER
9
18
36
9O
TOTAL WORDS
TOTAL BITS
AVERAGE BIT RATE
981
11772
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Final Report
Instrument
Report Documentation Page
i i
J LC_ C:F_ JTt- -NL
for HIMSS
Program -- Appendix: TRMM Study
A ... 04mS. - -'_."
Apri I 1991
E.. Lobl, Editor
L .=..:-_-, C.,,._- ;_ _ .=-z.zz--:Ne.
HS256C- 1045-0061
L _Oq_Nmt_m
Hughes Aircraft Company, Space
PO Box 92919
Los Angeles, CA 90009
_a_k,mmi_mo_Jdm,J
National Aeronautics and Space
Washington, D.C. 20546-0001
George C. Marshall Space
tL1k_Nem
& Comm. Group
i i
Administration
Flight Center
II. Cumml w G,im NL'
NAS8-38175
MOD 07
FINAL
,_mo,.,,m_Aok.,v(,,_
;& Jwm_mm
The TRMM Study shows the feasibility of a connically scanned,
total power radiometer for the Tropical Rainfall Measuring Mission.
The heritage of the TRMM radiometer is the Special Sensor Microwave
Imager (SSM/I) flying for the Air Force DMSP.
17. I_ Vve_ImIS_ la_Aue_lm
TRMM
Rad iome ter
Microwave
Unclassified
II. O,Sll'_hlNln $Utg_
_. S_ _. co__
Unclassified
NASA, FORM lr._li OC'r
ORIGINAL PAGE IS
OF POOR Q_JALITY
Government Contracts Reports NASA 18-53.303-1626 ¶ 62,222
! T
PREPARATION OF THE REPORT OOCUMENTATION PAGE
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slella_ or HQ program offal.
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OF POOR (_X,IALrT"y
¶ 62,222 NAS 18-53.303-1626  XeSe,CommerceClearlngHouse,Inc.




High resolution Microwave Spectrometer Sounder (HIMSS) instrument program. Appendix: TRMM study (an instrument for NASA's tropical rainfall measuring mission)

High resolution Microwave Spectrometer Sounder (HIMSS) instrument program. Appendix: TRMM study (an instrument for NASA's tropical rainfall measuring mission)

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