ASTROSAT CZTI

Data Quality Report

Orbit 21784

Creation date: 2024-06-27T18:32:09.293150
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/AS1A07_006T01_9000003226_21784cztM0_level2.evt modeM0/AS1A07_006T01_9000003226_21784cztM0_level2_quad_clean.evt
Size (bytes)335,759,04052,531,200
Size320.2 MB 50.1 MB
Events in quadrant A1,580,684365,801
Events in quadrant B1,655,059379,965
Events in quadrant C1,579,041362,439
Events in quadrant D5,156,341276,022

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0600
B0600
C0600
D0600

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A063181
B065911
C062582
D0172381

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2882160.555170%
B2882401.387925%
C2881491.700798%
D2881165357.375911%

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 4212 2883 0 0 0.00% 0.00%
B 4212 2883 0 0 0.00% 0.00%
C 4211 2882 0 0 0.00% 0.00%
D 4211 2882 1492 1492 35.43% 51.77%

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 15 236 11346 132.25 405 397 82.8
A 13 252 7864 90.19 405 397 82.8
A 13 254 5313 59.38 405 397 82.8
B 0 230 21959 277.88 407 397 77.6
B 0 197 11783 146.74 407 397 77.6
B 3 64 11270 140.13 407 397 77.6
C 14 238 61558 664.74 388 392 92.0
C 0 10 2999 28.33 388 392 92.0
C 13 61 2763 25.77 388 392 92.0
D 7 238 3679358 45538.32 329 320 80.8
D 1 52 52641 647.62 329 320 80.8
D 13 153 49986 614.75 329 320 80.8

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