ASTROSAT CZTI

Data Quality Report

Orbit 38905

Creation date: 2024-06-27T21:57:59.759517
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_064T01_9000005416_38905cztM0_level2.fits modeM0/AS1T05_064T01_9000005416_38905cztM0_level2_quad_clean.evt
Size (bytes)366,183,36094,057,920
Size349.2 MB 89.7 MB
Events in quadrant A3,193,658632,380
Events in quadrant B2,713,185640,629
Events in quadrant C2,722,843615,435
Events in quadrant D4,481,957561,405

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130332
B0118311
C0116481
D0172081

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5698290.508951%
B5698440.772201%
C569860.105300%
D56981152.018252%

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 7221 5699 20 20 0.28% 0.35%
B 7221 5699 29 29 0.40% 0.51%
C 7221 5699 0 0 0.00% 0.00%
D 7221 5699 89 89 1.23% 1.56%

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 442915 3457.25 633 618 127.9
A 13 248 247636 1930.84 633 618 127.9
A 15 223 24310 185.19 633 618 127.9
B 5 172 89534 736.19 625 606 120.8
B 0 230 70703 580.3 625 606 120.8
B 15 85 35890 292.1 625 606 120.8
C 15 214 244513 1704.82 615 618 143.1
C 14 254 53397 368.92 615 618 143.1
C 4 254 10597 69.75 615 618 143.1
D 12 235 1473962 9813.78 613 595 150.1
D 12 233 256256 1702.9 613 595 150.1
D 2 250 98437 651.7 613 595 150.1

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