ASTROSAT CZTI

Data Quality Report

Orbit 08563

Creation date: 2024-06-27T15:34:18.544236
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/AS1G07_060T01_9000001200_08563cztM0_level2.evt modeM0/AS1G07_060T01_9000001200_08563cztM0_level2_quad_clean.evt
Size (bytes)440,415,36092,185,920
Size420.0 MB 87.9 MB
Events in quadrant A3,308,859587,747
Events in quadrant B3,276,596591,667
Events in quadrant C2,932,407585,875
Events in quadrant D3,371,223566,275

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144972
B0142081
C0133971
D0148061

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65991021.545689%
B65991101.666919%
C6599380.575845%
D65991432.166995%

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 7499 6599 36 36 0.48% 0.55%
B 7499 6599 49 49 0.65% 0.74%
C 7499 6599 0 0 0.00% 0.00%
D 7499 6599 97 97 1.29% 1.47%

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 15 223 262159 1666.04 764 745 156.9
A 15 239 95690 605.1 764 745 156.9
A 0 226 7035 40.09 764 745 156.9
B 10 16 236428 1602.39 765 746 147.1
B 0 214 35215 234.35 765 746 147.1
B 12 111 16618 107.91 765 746 147.1
C 13 61 5636 27.92 750 753 174.9
C 8 222 3873 17.84 750 753 174.9
C 9 54 3339 14.78 750 753 174.9
D 7 71 212558 1168.33 744 724 181.3
D 14 34 116908 640.79 744 724 181.3
D 1 52 88292 482.97 744 724 181.3

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