ASTROSAT CZTI

Data Quality Report

Orbit 43073

Creation date: 2024-06-27T22:47:40.061576
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_001T10_9000005844_43073cztM0_level2.fits modeM0/AS1C07_001T10_9000005844_43073cztM0_level2_quad_clean.evt
Size (bytes)350,804,16094,322,880
Size334.6 MB 90.0 MB
Events in quadrant A3,417,903631,807
Events in quadrant B2,791,806644,215
Events in quadrant C2,655,142614,076
Events in quadrant D3,667,306558,909

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0230
C0230
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138682
B0124102
C0117092
D0150662

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5823721.236476%
B5823290.498025%
C582330.051520%
D58232303.949854%

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 7166 5824 48 48 0.67% 0.82%
B 7166 5824 17 17 0.24% 0.29%
C 7166 5824 0 0 0.00% 0.00%
D 7166 5824 168 168 2.34% 2.88%

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 642749 5039.41 618 605 127.4
A 15 237 235974 1847.12 618 605 127.4
A 12 189 89792 699.92 618 605 127.4
B 0 229 96072 800.22 618 600 119.3
B 0 186 86344 718.69 618 600 119.3
B 5 255 62797 521.32 618 600 119.3
C 15 214 260945 1821.99 608 612 142.9
C 12 2 8047 52.04 608 612 142.9
C 3 233 4302 25.83 608 612 142.9
D 1 52 411004 2796.22 600 583 146.8
D 2 249 341223 2320.8 600 583 146.8
D 5 32 280773 1908.95 600 583 146.8

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