ASTROSAT CZTI

Data Quality Report

Orbit 32031

Creation date: 2024-06-27T20:35:38.367972
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/AS1T04_046T01_9000004680_32031cztM0_level2.evt modeM0/AS1T04_046T01_9000004680_32031cztM0_level2_quad_clean.evt
Size (bytes)665,216,64066,029,760
Size634.4 MB 63.0 MB
Events in quadrant A3,218,036406,020
Events in quadrant B8,035,284371,134
Events in quadrant C4,331,117390,897
Events in quadrant D4,134,652389,779

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132951
B0281161
C0170041
D0160981

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6313260.411849%
B6313140422.239823%
C63132293.627435%
D63141181.868863%

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 7528 6313 0 0 0.00% 0.00%
B 7528 6313 1046 1046 13.89% 16.57%
C 7528 6313 108 108 1.43% 1.71%
D 7529 6314 92 92 1.22% 1.46%

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 15096 87.26 830 814 163.7
A 13 254 11036 62.45 830 814 163.7
A 3 137 7777 42.54 830 814 163.7
B 12 18 2650763 19233.94 743 728 137.8
B 6 159 1584978 11498.48 743 728 137.8
B 10 245 788212 5715.55 743 728 137.8
C 3 233 743763 4093.49 792 799 181.5
C 0 10 329287 1809.86 792 799 181.5
C 14 238 131138 718.13 792 799 181.5
D 8 195 561530 3001.12 801 782 186.8
D 12 218 345715 1846.08 801 782 186.8
D 2 250 109236 580.45 801 782 186.8

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