ASTROSAT CZTI

Data Quality Report

Orbit 30571

Creation date: 2024-06-27T20:17:08.152033
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/AS1A10_053T23_9000004404_30571cztM0_level2.evt modeM0/AS1A10_053T23_9000004404_30571cztM0_level2_quad_clean.evt
Size (bytes)560,609,28094,910,400
Size534.6 MB 90.5 MB
Events in quadrant A3,567,329641,384
Events in quadrant B5,537,321616,396
Events in quadrant C3,813,344586,932
Events in quadrant D3,640,396596,560

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142321
B0207141
C0154001
D0146491

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62001061.709677%
B62014246.837607%
C62013936.337687%
D6201530.854701%

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 7535 6201 36 36 0.48% 0.58%
B 7536 6202 212 212 2.81% 3.42%
C 7536 6201 27 27 0.36% 0.44%
D 7536 6202 24 24 0.32% 0.39%

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 12 96 142173 817.85 883 869 172.8
A 13 210 10906 58.09 883 869 172.8
A 13 254 10875 57.91 883 869 172.8
B 6 159 1633287 10263.55 847 830 159.1
B 6 36 584812 3671.6 847 830 159.1
B 12 111 18461 110.85 847 830 159.1
C 3 233 218208 1176.14 799 808 184.8
C 14 238 207817 1119.92 799 808 184.8
C 0 10 109123 585.99 799 808 184.8
D 8 195 164013 821.99 851 832 198.5
D 1 52 71102 353.97 851 832 198.5
D 13 249 69271 344.75 851 832 198.5

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