P93s1 session2 Calibration Protocol

Decision Summary

Upload-ready calibration protocol overview

Instrument P93s1

Session 2

Location LabGSFC

Calibration person Bryan Place

CF file Pandora93s1_CF_v2d20250530.txt

Software version 1.8.73

Calibration vector -

Reference day 20250620-20250623

Overall status development

O3Ext: UnusableO3Synt: With CareNO2: YesSO2: YesHCHO: YesH2O: Not answered

Instrument P93s1

Session 2

Events 562

Figures 17

Action time 3h 46m

Action Timeline

136 action intervals

Duration by Step

Action Summary

Action	Events	Runs	Aborted	Time
AnalyzeBright	20	3	2	12m 35s
AnalyzeDark	38	7	2	21m 51s
AssignCalFile	8	3	2	56s
CheckFilters	4	1	0	8s
CheckNoiseWave	6	1	0	22s
Convolution	16	5	0	47s
CreateReference	113	55	23	16m 4s
FieldCalibration	174	35	4	2h 21m
NDFilters	16	1	0	56s
No action	35	0	0	0s
SensitivityCalibration	64	3	0	1m 42s
StrayLight	37	11	5	1m 55s
WavelengthCalibration	31	10	4	27m 29s

Session Figures

17 figures from Google Drive/figures

calprotocol section

Wavelength Calibration

Slit function parameters

Pandora93s1_WavelengthCalibration_SlitFuncParam.jpeg - 121 KB

reference period

Reference Day Decision Support

Upload the FOV and L0 raw-count evidence used to justify the selected reference day before reviewing the CreateReference figures.

FOV evidence plot L0 raw-count reference-day plot

calprotocol section

Reference Period and CreateReference

Create reference L1CHARFILT

Pandora93s1_CreateReference_L1CHARFILT_OPEN_U340.jpeg - 95 KB

Create reference SELSPECS

Pandora93s1_CreateReference_SELSPECS_OPEN_U340.jpeg - 88 KB

Create reference SLERR (STRAY)

Pandora93s1_CreateReference_SLERR(STRAY)_OPEN_U340.jpeg - 86 KB

Create reference AODEST

Pandora93s1_CreateReference_AODEST.jpeg - 37 KB

Create reference SENSCORRFIN (SENS)

Pandora93s1_CreateReference_SENSCORRFIN(SENS)_OPEN_U340.jpeg - 85 KB

Create reference DISPFIT (DISP)

Pandora93s1_CreateReference_DISPFIT(DISP).jpeg - 79 KB

Create reference WLCHANGE (DISP)

Pandora93s1_CreateReference_WLCHANGE(DISP)_OPEN_U340.jpeg - 93 KB

Create reference SHIFT (CLOS)

Pandora93s1_CreateReference_SHIFT(CLOS)_OPEN_U340.jpeg - 94 KB

field calibration

O3

FieldCalibration VC O3

Pandora93s1_FieldCalibration_VC_O3.jpeg - 67 KB

FieldCalibration SCREFINT O3

Pandora93s1_FieldCalibration_SCREFINT_O3.jpeg - 51 KB

field calibration

NO2

FieldCalibration MLE NO2

Pandora93s1_FieldCalibration_MLE_NO2.jpeg - 114 KB

FieldCalibration VCMLE NO2

Pandora93s1_FieldCalibration_VCMLE_NO2.jpeg - 76 KB

field calibration

SO2

FieldCalibration MLE SO2

Pandora93s1_FieldCalibration_MLE_SO2.jpeg - 66 KB

FieldCalibration VCMLE SO2

Pandora93s1_FieldCalibration_VCMLE_SO2.jpeg - 66 KB

field calibration

HCHO

FieldCalibration MLE HCHO

Pandora93s1_FieldCalibration_MLE_HCHO.jpeg - 69 KB

FieldCalibration VCMLE HCHO

Pandora93s1_FieldCalibration_VCMLE_HCHO.jpeg - 61 KB

Automatically harvested metadata

Automatically Harvested Metadata

PanID

Spec

Location

LabGSFC

Calibration person

Bryan Place

Session

Purpose

AnaLab+Fld

StartDate

20250618

SoftwareVersion

1.8.73

Calibration VectorL0

20250527

20250521

20250527

LTL8ReferenceDay

20250620-20250623

PeriodMLE

20250607-20250625

NO2

redu=1: fw1out=(); fw2out=(); dqf2in=(); ddlim=(-1.000,-1.000); shilim(nm)=(-0.050,0.050); uscmax=5.665e-04; wrmsmax=3.643e-02; atvarmax(%)=2.000e+01; amflim=(1.000,5.000); amflimvar=(0.000,1.000); perc=0.00; ngroup=70; timeaver(min)=0.00; redu=1; scref=(1.316e-04,1.138e-04,1.199e-04); uscref=(8.181e-06,2.614e-06,8.727e-06)

HCHO

MLE: fw1out=(); fw2out=(); dqf2in=(); ddlim=(-1.000,-1.000); shilim(nm)=(-0.050,0.050); uscmax=2.965e-02; wrmsmax=2.622e-01; atvarmax(%)=5.000e+01; amflim=(1.000,5.000); amflimvar=(0.000,1.000); perc=0.00; ngroup=10; timeaver(min)=0.00; redu=0; scref=(3.116e-04); uscref=(2.527e-05)

SO2

MLE: fw1out=(); fw2out=(); dqf2in=(); ddlim=(-1.000,-1.000); shilim(nm)=(-0.050,0.050); uscmax=1.719e-02; wrmsmax=3.530e-01; atvarmax(%)=5.000e+01; amflim=(1.000,5.000); amflimvar=(0.000,1.000); perc=0.00; ngroup=15; timeaver(min)=0.00; redu=0; scref=(1.369e-05); uscref=(1.001e-05)

CommentLabCalibration

Second clearance session using new spectrometer, initial analysis showed instrument had high near field stray light

CommentLabAnalysisOFused

Pandora93_OF_v1d20240516.txt

NewOFNewCF

Pandora93s1_CF_v2d20250530.txt

CF approvedCF approved byEndDate

20260310

CFavailableOFavailableAnalysisSessionUpload

20260310

ProcessingTriggeredProcessingDone

Manual review and decision

Manual Review and Decision

Calibration notes, data-quality findings, and whole-period evaluation.

Data Evaluation

Could there be an offset between VPs?

Are there breakpoint-analysis plots or suspicious discontinuities?

Do daily figures before and after the new VP look consistent?

Is there an AMF dependency for one or more VPs?

Is there seasonality, for example negative values in winter?

Does the daily shape follow the trop data roughly?

If there is a discrepancy, what are the DS and Sky viewing directions?

Is there a co-located or nearby instrument for comparison?

O3Ext

Decision for O3Ext

Unusable

Out2 showed AMF dependence and Ous1 columns were slightly offset from reference

O3Synt

Decision for O3Synt

With Care

NO2

Decision for NO2

Yes

E-MLE, NO2 columns and wrms shape looks good and agree well with Ref instrument

SO2

Decision for SO2

Yes

MLE, SO2 columns agree well with reference and have less pronounced AMF shape than reference

HCHO

Decision for HCHO

Yes

E-MLE, HCHO columns and wrms shape looks good and agree well with Ref instrument

H2O

Decision for H2O