ASTROSAT CZTI

Data Quality Report

Orbit 10040

Creation date: 2024-06-27T15:54:07.355589
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/AS1A03_052T01_9000001436_10040cztM0_level2.evt modeM0/AS1A03_052T01_9000001436_10040cztM0_level2_quad_clean.evt
Size (bytes)756,262,080151,269,120
Size721.2 MB 144.3 MB
Events in quadrant A5,472,538962,170
Events in quadrant B5,422,081984,348
Events in quadrant C5,069,179953,959
Events in quadrant D6,172,566898,883

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A027650
B027638
C027644
D027650

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0254
B0254
C0256
D0255

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0285975185
B0281154768
C0276624723
D0313926054

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A112821120.992732%
B113561080.951039%
C11329720.635537%
D111691791.602650%

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 16047 12272 6 6 0.04% 0.05%
B 16047 12304 2 2 0.01% 0.02%
C 16047 12293 0 0 0.00% 0.00%
D 16047 12156 88 88 0.55% 0.72%

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 8 15 236721 868.05 1333 1303 271.2
A 15 174 69936 253.07 1333 1303 271.2
A 0 8 29826 105.17 1333 1303 271.2
B 0 214 76557 291.33 1345 1311 258.3
B 4 239 41857 156.98 1345 1311 258.3
B 12 111 28352 104.7 1345 1311 258.3
C 14 67 22149 69.72 1292 1298 299.1
C 13 61 9804 28.44 1292 1298 299.1
C 8 222 8485 24.03 1292 1298 299.1
D 12 233 284732 888.07 1261 1226 319.2
D 8 195 275182 858.15 1261 1226 319.2
D 1 52 221814 690.98 1261 1226 319.2

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