ASTROSAT CZTI

Data Quality Report

Orbit 21406

Creation date: 2024-06-27T18:27:26.980439
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/AS1T03_140T01_9000003160_21406cztM0_level2.evt modeM0/AS1T03_140T01_9000003160_21406cztM0_level2_quad_clean.evt
Size (bytes)654,238,08083,865,600
Size623.9 MB 80.0 MB
Events in quadrant A3,786,418559,282
Events in quadrant B3,531,174569,195
Events in quadrant C3,568,543547,843
Events in quadrant D8,498,989420,413

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154954
B0144332
C0145782
D0298192

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6329771.216622%
B63291211.911834%
C63291542.433244%
D6329173027.334492%

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 7559 6329 0 0 0.00% 0.00%
B 7559 6329 14 14 0.19% 0.22%
C 7559 6329 0 0 0.00% 0.00%
D 7559 6329 1710 1710 22.62% 27.02%

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 5 168 411169 2360.39 873 858 173.8
A 11 47 13010 69.91 873 858 173.8
A 13 254 10077 53.03 873 858 173.8
B 6 36 90730 563.47 862 845 159.5
B 0 190 29543 179.9 862 845 159.5
B 12 111 18476 110.52 862 845 159.5
C 3 233 188140 982.37 830 837 190.7
C 14 238 134342 700.21 830 837 190.7
C 0 236 9936 47.72 830 837 190.7
D 1 52 2098031 11599.35 757 737 180.8
D 12 235 1871119 10344.39 757 737 180.8
D 14 34 1442689 7974.9 757 737 180.8

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