Requirements from 474-00448-01-02 16Jan2014, allocated to algorithm provider
Req. No.
Requirement
Product
L3 Type
Verification Method/Approach
Status
Artifact
SRS.01.02_43
The ATMS TDR software shall calculate antenna temperatures with the per channel antenna temperature accuracy limits of 1 deg K for channels 1-2 and channels 16-22; 0.75 K for channels 3-15.
TDR
P
Test against truth data
partially met
7.Collard_Obs.pptx

1.Weng_Accuracy.pptx

Weng et al (2013) section 6

ATMS Error Budget section 1.3
SRS.01.02_85
The ATMS SDR software shall calculate brightness temperatures with the per channel
brightness temperature accuracy limits of 1 deg K for channels 1-2 and channels 16-22;
0.75 K for channels 3-15.
SDR
P Test against truth data partially met
1.Weng_Accuracy.pptx

Weng et al (2013) section 6

ATMS Error Budget section 1.3
SRS.01.02_87
The ATMS SDR software shall calculate the warm NeDT with the per channel 300K NeDT limits of 0.7 deg K for channels 1 and 4-9; 0.8 K for channels 2 and 18-21; 0.9 K for channels 3 and 22; 0.75 K for channel 10; 1.2 K for channels 11-12; 1.5 K for channel 13; 2.4 K for channel 14; 3.6 K for channel 15; 0.5 K for channel 16; and 0.6 K for channel 17.
SDR
P Test against truth data met
6.Sun_NeDT.pptx

Weng et al (2013) section 4

ATMS Error Budget section 1.5
SRS.01.02_94
The ATMS TDR software shall calculate the antenna temperature with a per channel limit on scan striping as specified in the JPSS Algorithm Specification Vol IV: SRSPF for ATMS RDR/TDR/SDR (474-00448-04-02) <Performance><Striping>.
Current SRSPF value: the ratio of the standard deviation of the along-track difference between scans of the brightness temperature of the center pixel, to the ratio of NeDT, shall be no greater than 1.1 per channel
TDR
P derived
unspecified Test
unmet
slides 18 and 20 of 4.Gu ATMS Striping Noise Assessment
SRS.01.02_739
The ATMS TDR software shall calculate antenna temperatures with a dynamic range of 0-330 Kelvin at all channels.
TDR
P
unspecified Test
not determined

SRS.01.02_719
The ATMS TDR software shall calculate the 4-wire and 2-wire PRT temperatures with an accuracy of 0.5 degree celsius.
TDR
P derived
unspecified Test not determined
SRS.01.02_740
 The ATMS TDR software shall correct forpolarization-dependent emissivity and the polarization twist of the instrument according to limits specified in the JPSS Algorithm
Specification Vol IV: SRSPF for ATMS RDR/TDR/SDR (474-00448-04-02) <Performance><polarization>.
Current SRSPF value: Correct for polarization dependent emissivity of the rotating reflector and the absolute
polarization twist of the instrument. A test to measure the emissivity might consist of measuring the same external target at different viewing angles and see if the brightness temperature is consistent. It will help understand the issue during ground testing and derive a correction term
TDR
P derived
unspecified Test not determined
SRS.01.02_725
 The ATMS TDR software shall mitigate to ensure partial scans, missing scans, short granules, repaired granules, are handled and trapped.
TDR
P derived
unspecified Test not determined
SRS.01.02_741
 The ATMS SDR software shall provide a geolocation accuracy as specified in the JPSS Algorithm Specification Vol IV: SRSPF for ATMS RDR/TDR/SDR (474-00448-04- 02)<Performance><Geolocation>.
Current SRSPF value: for channels 1,2: 0.3 degrees. For ch 3-16, 0.2 degrees. For ch 17-22, 0.1 deg
GEO
P derived
unspecified Test partially met
1.Weng_GEO.pptx

ATMS Error Budget section 1.6
SRS.01.02_79
 The ATMS TDR software shall deliver effective fields of view along track of 5.2 deg for channels 1 and 2; 2.2 deg for channels 3-16; and 1.1 deg for channels 17-22.
TDR
P Test against truth data not determined
SRS.01.02_738
 The ATMS TDR software shall deliver effective fields of view cross-track of 6.3 deg for channels 1 and 2; 3.3 deg for channels 3-16; and 2.2 deg for channels 17-22.
TDR
P Test against truth data not determined
SRS.01.02_864
 The ATMS SDR Geolocation algorithm computation shall have a 3 sigma mapping uncertainty of 5 km.
GEO
P Test against truth data met
1.Weng_GEO.pptx

ATMS Error Budget section 1.6
SRS.01.02_41
 The ATMS TDR software shall incorporate a computing algorithm provided for antenna  temperatures.
TDR
Ap
Inspection of source code
met
NA
SRS.01.02_44
 The ATMS TDR software shall incorporate a computing algorithm provided for evaluating the effect of the moon on the space view calibration.
TDR
Ap
Inspection of source code met
NA
SRS.01.02_83
 The ATMS SDR software shall incorporate a computing algorithm provided for brightness temperatures.
SDR
Ap
Inspection of source code met
NA
SRS.01.02_86
 The ATMS SDR software shall incorporate a computing algorithm provided for warm NeDT values.
SDR
Ap
Inspection of source code met
NA
SRS.01.02_89
 The ATMS SDR software shall incorporate a computing algorithm provided for cold NeDT values.
SDR
Ap
Inspection of source code met
NA
SRS.01.02_91
 The ATMS SDR software shall incorporate a computing algorithm provided for gain values.
SDR
Ap
Inspection of source code met
NA
SRS.01.02_93
 The ATMS SDR software shall incorporate a computing algorithm provided for evaluating the effect of the moon on the space view calibration.
SDR
Ap
Inspection of source code met
NA
SRS.01.02_737
 The ATMS SDR software shall incorporate a computing algorithm provided for calibrated radiances.
SDR
Ap
Inspection of source code unmet
J1 upper