ASTROSAT CZTI

Data Quality Report

Orbit 41466

Creation date: 2024-06-27T22:29:35.385839
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/AS1T05_110T01_9000005672_41466cztM0_level2.fits modeM0/AS1T05_110T01_9000005672_41466cztM0_level2_quad_clean.evt
Size (bytes)318,012,48088,272,000
Size303.3 MB 84.2 MB
Events in quadrant A2,825,706589,877
Events in quadrant B2,571,619606,900
Events in quadrant C2,791,332565,383
Events in quadrant D3,156,661527,135

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114711
B0113941
C0116471
D0131071

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5473110.200987%
B5473160.292344%
C5473871.589622%
D5473681.242463%

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 6786 5474 3 3 0.04% 0.05%
B 6786 5474 4 4 0.06% 0.07%
C 6786 5474 76 76 1.12% 1.39%
D 6786 5474 57 57 0.84% 1.04%

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 466221 3763.43 597 584 123.7
A 2 79 32555 258.4 597 584 123.7
A 13 248 11891 91.39 597 584 123.7
B 5 255 75041 645.95 597 580 115.3
B 0 190 71385 614.24 597 580 115.3
B 0 245 41329 353.5 597 580 115.3
C 0 10 283051 2078.16 581 584 135.9
C 15 214 225939 1657.98 581 584 135.9
C 12 249 10923 76.07 581 584 135.9
D 13 249 288333 1996.88 583 566 144.1
D 5 222 210748 1458.5 583 566 144.1
D 1 52 153683 1062.51 583 566 144.1

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