ASTROSAT CZTI

Data Quality Report

Orbit 47591

Creation date: 2024-07-16T20:16:31.396137
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/AS1A13_037T05_9000006338_47591cztM0_level2.fits modeM0/AS1A13_037T05_9000006338_47591cztM0_level2_quad_clean.evt
Size (bytes)562,968,000100,722,240
Size536.9 MB 96.1 MB
Events in quadrant A6,618,870704,317
Events in quadrant B3,558,326744,203
Events in quadrant C2,788,218713,660
Events in quadrant D7,412,834472,271

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0241671
B0146051
C0122801
D0260141

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59424177.017839%
B59421833.079771%
C5943771.295642%
D5943182830.758876%

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 7142 5943 102 102 1.43% 1.72%
B 7142 5942 18 18 0.25% 0.30%
C 7143 5943 0 0 0.00% 0.00%
D 7143 5943 1688 1688 23.63% 28.40%

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 10 83 3390815 22869.21 715 701 148.2
A 9 191 274774 1848.85 715 701 148.2
A 13 248 177925 1195.52 715 701 148.2
B 0 200 481393 3419.54 716 697 140.6
B 5 172 79572 561.1 716 697 140.6
B 14 16 63914 449.71 716 697 140.6
C 3 233 32905 195.62 703 708 164.6
C 1 3 11996 68.58 703 708 164.6
C 13 61 4797 24.84 703 708 164.6
D 2 165 4143257 26319.72 629 610 157.4
D 2 249 572787 3635.25 629 610 157.4
D 7 55 88323 557.27 629 610 157.4

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