Functional Characterisation

Parameter

Testing conditions

Data product

Uncertainty

Remark

FOV mapping

128 um pinhole
Hot source
at 615 K

FOV alignment

4%

MIO at
thermal extremes

ZPD centre

Nominal mode

Fringe count error



MIO at
mean temperature

Analogue gain

OCB at
250 K and DSS
CBA at
220 K and DSS

Adjustement
of ZPD
amplitude
vs. gain



MIO at
mean temperature

ODS
and SPE check

Raw data
mode Band D

ODS
laser frequency
SPE
numerical filters

0.1 cm^{1}

MIO at
mean temperature

Characterisation parameters

Parameters

Testing conditions

Data product

Uncertainty

Remark

Aliasing verification

CBA
and OCB at
250 K

Rejection
level of filters

0.1%

MIO at
mean temperature

Band combination

Band C and D
OCB at
230 K and DSS

SPE combination
filters



MIO at
mean temperature

Highresolution
feature

CBA
and OCB at
250 K
and DSS

absence of feature
< 0.25 cm^{1}

30% of radiometric
accuracy

MIO at
mean temperature

Nonlinearity

CBA at
210,222, 233,
242 and 250 K

Response
vs. signal
amplitude; nonlinearity
coefficients

0.2%

MIO at
mean temperature

Radiometric

CBA
and OCB at
220 K
and DSS

gain
and offset

30% of radiometric
accuracy

MIO at
mean temperature

Spectral characterisitics

Parameters

Testing conditions

Data product

Uncertainty

Remark

Spectral stability

OCB at 300K
Band D

Stability of
spectral line
during 165 sec

0.001 cm^{1}

MIO at
thermal extremes
and mean temperature

Spectral resolution

Band D

FWHM
of ILS

0.001 cm^{1}

MIO at
thermal extremes

Spectral linearity

OCB at 250K

Spectral position
rms error

0.001 cm^{1}

MIO at
thermal extremes

ILS stability

OCB at 300K

ILS
shape during
5 days

0.1 to 0.2%

MIO at
thermal extremes
and mean temperature

ILS morphology

OCB at 300K

ILS
model parameters

1%

MIO at
thermal extremes
and mean temperature

Radiometric measurements

Parameters

Testing conditions

Data product

Uncertainty

Remark

Dark NESR

DSS

Instrument noise

30% of radiometric
accuracy

MIO at warmest
temperature

NESR

OCB at
180, 207, 220,
230 and 250 K

Total noise

30% of radiometric
accuracy

MIO at warmest
temperature

Radiometric accuracy

OCB at
230 K, DSS

accuracy
better than 2xNESR
+x% of
source radiance
(x=5 (band
A) to 1 (band D))

30% of radiometric
accuracy

MIO at
thermal extremes
and mean temperature

Dynamic range

OCB at
180, 207, 220,
230 and 250 K

Adequate
range up to
270 K



MIO at warmest
temperature

Damage limit

OCB at
400 K

no damage verification



MIO at warmest
temperature

Line of sight

Parameters

Testing conditions

Data product

Uncertainty

Remark

LOS elevation
and azimuth

50 um pinhole
Band D

LOS
algorithm verification
Datation verification



MIO at
mean temperature
