ASTROSAT CZTI

Data Quality Report

Orbit 05222

Creation date: 2024-06-27T14:52:43.771530
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/AS1G05_141T01_9000000664_05222cztM0_level2.evt modeM0/AS1G05_141T01_9000000664_05222cztM0_level2_quad_clean.evt
Size (bytes)576,486,72073,848,960
Size549.8 MB 70.4 MB
Events in quadrant A3,123,202463,024
Events in quadrant B3,238,336473,017
Events in quadrant C2,908,497471,562
Events in quadrant D7,749,594376,417

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138143
B0139882
C0131412
D0275592

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6471600.927214%
B6471340.525421%
C6471200.309071%
D6471190329.408129%

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 7571 6472 39 39 0.52% 0.60%
B 7571 6472 7 7 0.09% 0.11%
C 7571 6472 0 0 0.00% 0.00%
D 7571 6471 1647 1647 21.75% 25.45%

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 0 50 239236 1541.8 750 734 154.7
A 0 226 7409 43.15 750 734 154.7
A 12 194 7344 42.73 750 734 154.7
B 4 80 126566 868.7 764 747 144.8
B 4 48 40095 271.67 764 747 144.8
B 15 204 32583 219.81 764 747 144.8
C 1 16 41141 239.58 731 735 168.7
C 13 61 5880 30.51 731 735 168.7
C 8 128 5519 28.37 731 735 168.7
D 11 145 4390441 29376.58 608 589 149.4
D 2 33 822588 5500.76 608 589 149.4
D 12 233 67560 448.17 608 589 149.4

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