ASTROSAT CZTI

Data Quality Report

Orbit 46286

Creation date: 2024-06-27T23:21:17.404275
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/AS1A13_072T02_9000006194_46286cztM0_level2.fits modeM0/AS1A13_072T02_9000006194_46286cztM0_level2_quad_clean.evt
Size (bytes)235,938,24057,945,600
Size225.0 MB 55.3 MB
Events in quadrant A3,094,484379,223
Events in quadrant B2,042,964401,245
Events in quadrant C1,646,994382,737
Events in quadrant D1,687,560354,182

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0113121
B082201
C071221
D072851

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0680
B0680
C0680
D0680

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A33482196.541219%
B33481273.793309%
C3348972.897252%
D3348832.479092%

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 4458 3349 3 3 0.07% 0.09%
B 4458 3349 1 1 0.02% 0.03%
C 4458 3349 2 2 0.04% 0.06%
D 4458 3349 5 5 0.11% 0.15%

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 10 83 1488510 16862.29 415 404 88.3
A 13 254 5221 54.58 415 404 88.3
A 3 137 4667 48.31 415 404 88.3
B 3 112 374018 4465.82 414 402 83.7
B 0 190 22302 261.77 414 402 83.7
B 12 111 10879 125.23 414 402 83.7
C 12 2 35486 354.04 412 413 99.1
C 14 67 6770 64.17 412 413 99.1
C 13 61 2717 23.26 412 413 99.1
D 11 192 47286 441.85 413 400 106.1
D 2 249 31986 297.66 413 400 106.1
D 13 249 17202 158.34 413 400 106.1

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