ASTROSAT CZTI

Data Quality Report

Orbit 32958

Creation date: 2024-06-27T20:43:52.434092
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/AS1C07_001T01_9000004752_32958cztM0_level2.evt modeM0/AS1C07_001T01_9000004752_32958cztM0_level2_quad_clean.evt
Size (bytes)511,554,240103,587,840
Size487.9 MB 98.8 MB
Events in quadrant A2,428,339717,902
Events in quadrant B3,374,755694,552
Events in quadrant C2,695,730726,801
Events in quadrant D6,644,641636,756

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0105063
B0132982
C0112952
D0232762

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A514720.038858%
B51473777.324655%
C5147791.534875%
D514780515.640179%

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 7059 5148 0 0 0.00% 0.00%
B 7059 5148 288 288 4.08% 5.59%
C 7059 5147 47 47 0.67% 0.91%
D 7059 5148 693 693 9.82% 13.46%

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 13 6 13160 101.73 618 606 123.4
A 0 159 10788 82.51 618 606 123.4
A 13 254 8658 65.25 618 606 123.4
B 5 172 903840 8206.17 595 580 110.1
B 0 219 64090 576.99 595 580 110.1
B 0 229 18712 164.73 595 580 110.1
C 0 10 218996 1545.72 615 622 141.3
C 1 241 29662 205.55 615 622 141.3
C 3 233 18141 124.0 615 622 141.3
D 8 195 1954822 13257.55 579 568 147.4
D 2 250 1194062 8096.59 579 568 147.4
D 12 218 416728 2823.21 579 568 147.4

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