ASTROSAT CZTI

Data Quality Report

Orbit 42212

Creation date: 2024-06-27T22:38:33.167565
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A12_088T51_9000005780_42212cztM0_level2.fits modeM0/AS1A12_088T51_9000005780_42212cztM0_level2_quad_clean.evt
Size (bytes)156,021,12041,423,040
Size148.8 MB 39.5 MB
Events in quadrant A1,634,434281,544
Events in quadrant B1,180,369292,181
Events in quadrant C1,133,256273,788
Events in quadrant D1,648,721243,117

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A062971
B049221
C046421
D064643

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0480
B0480
C0480
D0480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2269672.952843%
B2269251.101807%
C226920.088145%
D22681376.040564%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 4213 2270 46 46 1.09% 2.03%
B 4213 2270 14 14 0.33% 0.62%
C 4213 2270 0 0 0.00% 0.00%
D 4212 2269 111 111 2.64% 4.89%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 15 223 289385 5031.6 273 268 57.5
A 10 83 261559 4547.33 273 268 57.5
A 15 222 14601 249.44 273 268 57.5
B 3 112 59098 1086.78 273 266 54.1
B 0 229 32547 596.31 273 266 54.1
B 5 255 8921 159.88 273 266 54.1
C 15 214 97633 1551.22 265 267 62.8
C 13 61 1855 25.3 265 267 62.8
C 12 249 1546 20.38 265 267 62.8
D 1 52 275081 4272.5 259 251 64.3
D 10 118 153021 2374.96 259 251 64.3
D 1 47 67555 1046.31 259 251 64.3

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter