ASTROSAT CZTI

Data Quality Report

Orbit 22086

Creation date: 2024-06-27T18:36:31.306599
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_146T01_9000003272_22086cztM0_level2.evt modeM0/AS1T03_146T01_9000003272_22086cztM0_level2_quad_clean.evt
Size (bytes)566,372,16086,063,040
Size540.1 MB 82.1 MB
Events in quadrant A3,617,328565,839
Events in quadrant B3,485,535576,913
Events in quadrant C3,837,101537,486
Events in quadrant D5,779,548479,725

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147782
B0143792
C0155542
D0213302

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63921372.143304%
B63921091.705257%
C63921912.988110%
D639282112.844180%

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 7562 6393 36 36 0.48% 0.56%
B 7562 6393 0 0 0.00% 0.00%
C 7562 6393 46 46 0.61% 0.72%
D 7562 6393 685 685 9.06% 10.71%

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 14 235 223654 1264.87 879 864 176.1
A 13 254 11410 59.87 879 864 176.1
A 0 226 7844 39.63 879 864 176.1
B 0 197 22448 129.79 878 859 166.3
B 12 111 19341 111.11 878 859 166.3
B 11 111 17138 97.87 878 859 166.3
C 0 239 349120 1834.88 818 826 189.8
C 9 54 168478 883.22 818 826 189.8
C 14 238 130469 682.98 818 826 189.8
D 1 52 2619099 13482.7 801 778 194.2
D 2 136 58051 294.92 801 778 194.2
D 5 222 36206 182.43 801 778 194.2

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