ASTROSAT CZTI

Data Quality Report

Orbit 38101

Creation date: 2024-06-27T21:48:23.831262
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/AS1A11_047T09_9000005362_38101cztM0_level2.fits modeM0/AS1A11_047T09_9000005362_38101cztM0_level2_quad_clean.evt
Size (bytes)331,778,88096,117,120
Size316.4 MB 91.7 MB
Events in quadrant A2,814,104662,520
Events in quadrant B2,663,502680,386
Events in quadrant C3,708,530610,699
Events in quadrant D2,684,450587,675

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115503
B0113712
C0142592
D0115602

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0350

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5272180.341426%
B5272320.606980%
C52722915.519727%
D5272190.360395%

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 7395 5273 7 7 0.09% 0.13%
B 7395 5273 16 16 0.22% 0.30%
C 7395 5273 286 286 3.87% 5.42%
D 7395 5273 16 16 0.22% 0.30%

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 350234 2792.7 618 607 125.2
A 9 143 20535 159.18 618 607 125.2
A 12 16 15843 121.7 618 607 125.2
B 0 229 182198 1518.94 620 605 119.6
B 12 111 14131 113.14 620 605 119.6
B 11 111 12943 103.2 620 605 119.6
C 1 23 1068640 7860.51 585 591 135.9
C 15 214 214375 1573.38 585 591 135.9
C 5 250 58072 423.04 585 591 135.9
D 13 138 146674 1005.45 598 584 145.3
D 13 249 59333 404.33 598 584 145.3
D 1 20 39735 269.45 598 584 145.3

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