ASTROSAT CZTI

Data Quality Report

Orbit 14338

Creation date: 2024-06-27T16:53:43.629579
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/AS1G08_078T01_9000002110_14338cztM0_level2.evt modeM0/AS1G08_078T01_9000002110_14338cztM0_level2_quad_clean.evt
Size (bytes)508,224,96096,488,640
Size484.7 MB 92.0 MB
Events in quadrant A3,244,189622,369
Events in quadrant B3,879,630622,158
Events in quadrant C3,397,364617,317
Events in quadrant D4,416,448593,945

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139352
B0159471
C0139801
D0179041

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6696210.313620%
B66961612.404421%
C6696310.462963%
D66961672.494026%

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 7612 6698 0 0 0.00% 0.00%
B 7612 6697 85 85 1.12% 1.27%
C 7612 6698 0 0 0.00% 0.00%
D 7612 6698 96 96 1.26% 1.43%

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 12 189 115602 706.27 804 786 162.6
A 8 15 35534 213.75 804 786 162.6
A 0 226 7058 38.58 804 786 162.6
B 10 16 567228 3689.2 798 778 153.5
B 0 229 118160 764.49 798 778 153.5
B 0 189 26345 166.51 798 778 153.5
C 3 233 332533 1795.83 787 792 184.7
C 13 61 5562 25.82 787 792 184.7
C 3 202 1840 5.67 787 792 184.7
D 5 222 482544 2592.07 775 756 185.9
D 1 52 356764 1915.36 775 756 185.9
D 13 122 273143 1465.47 775 756 185.9

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