ASTROSAT CZTI

Data Quality Report

Orbit 08037

Creation date: 2024-06-27T15:27:13.015302
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_246T02_9000001106_08037cztM0_level2.evt modeM0/AS1G05_246T02_9000001106_08037cztM0_level2_quad_clean.evt
Size (bytes)680,152,320124,358,400
Size648.6 MB 118.6 MB
Events in quadrant A4,504,625799,048
Events in quadrant B4,535,991817,349
Events in quadrant C4,002,954804,815
Events in quadrant D6,966,113742,077

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0194032
B0194491
C0180051
D0270291

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01740
B01740
C01740
D01740

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A86862552.935759%
B86863313.810730%
C86861842.118351%
D8686133515.369560%

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 9236 8687 71 71 0.77% 0.82%
B 9236 8687 54 54 0.58% 0.62%
C 9236 8687 0 0 0.00% 0.00%
D 9236 8687 1038 1038 11.24% 11.95%

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 4 2 552130 2620.35 1024 997 210.3
A 0 226 9478 40.32 1024 997 210.3
A 13 251 9218 39.09 1024 997 210.3
B 4 239 267516 1335.83 1037 1010 199.5
B 10 16 115452 573.62 1037 1010 199.5
B 11 51 57731 284.3 1037 1010 199.5
C 1 16 33448 136.75 1017 1018 237.1
C 13 61 7767 28.46 1017 1018 237.1
C 8 222 3115 8.84 1017 1018 237.1
D 13 169 3203992 13313.15 932 909 240.6
D 12 233 116037 478.51 932 909 240.6
D 2 136 35315 143.0 932 909 240.6

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