ASTROSAT CZTI

Data Quality Report

Orbit 26545

Creation date: 2024-06-27T19:30:16.037547
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/AS1A09_095T02_9000003840_26545cztM0_level2.evt modeM0/AS1A09_095T02_9000003840_26545cztM0_level2_quad_clean.evt
Size (bytes)589,999,680115,176,960
Size562.7 MB 109.8 MB
Events in quadrant A3,757,558801,122
Events in quadrant B3,511,021810,179
Events in quadrant C4,930,466710,187
Events in quadrant D5,256,725740,871

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151760
B0142020
C0187860
D0198880

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6102490.803015%
B6103691.130592%
C610378312.829756%
D61033665.997051%

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 7377 6102 0 0 0.00% 0.00%
B 7378 6104 22 22 0.30% 0.36%
C 7377 6103 456 456 6.18% 7.47%
D 7378 6103 288 288 3.90% 4.72%

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 0 13 494233 3069.12 826 813 160.8
A 5 168 74682 459.47 826 813 160.8
A 13 254 11347 65.52 826 813 160.8
B 3 64 283142 1921.62 808 790 146.9
B 3 112 22921 150.62 808 790 146.9
B 0 190 21726 142.49 808 790 146.9
C 4 254 1504126 9078.05 728 735 165.6
C 3 233 462744 2789.79 728 735 165.6
C 14 238 118867 713.33 728 735 165.6
D 7 80 1031204 5613.94 777 761 183.6
D 1 52 908474 4945.3 777 761 183.6
D 2 250 279002 1515.88 777 761 183.6

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