ASTROSAT CZTI

Data Quality Report

Orbit 42777

Creation date: 2024-06-27T22:44:06.387869
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/AS1A05_013T01_9000005822_42777cztM0_level2.fits modeM0/AS1A05_013T01_9000005822_42777cztM0_level2_quad_clean.evt
Size (bytes)300,188,16089,167,680
Size286.3 MB 85.0 MB
Events in quadrant A2,878,884608,172
Events in quadrant B2,637,891604,688
Events in quadrant C2,532,251591,215
Events in quadrant D2,668,147540,940

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114562
B0111512
C0105522
D0115922

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5064170.335703%
B50641122.211690%
C5064290.572670%
D5064621.224329%

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 7007 5065 6 6 0.09% 0.12%
B 7007 5065 80 80 1.14% 1.58%
C 7007 5065 22 22 0.31% 0.43%
D 7007 5065 61 61 0.87% 1.20%

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 550646 4642.5 578 566 118.5
A 12 189 45980 383.28 578 566 118.5
A 13 6 25539 210.76 578 566 118.5
B 0 156 198239 1817.75 571 556 108.8
B 5 172 94993 868.37 571 556 108.8
B 0 245 45124 409.82 571 556 108.8
C 15 214 204873 1554.72 562 569 131.4
C 14 254 101717 769.72 562 569 131.4
C 8 79 31042 231.9 562 569 131.4
D 2 249 176826 1288.16 557 541 136.8
D 12 233 110374 802.58 557 541 136.8
D 13 249 106829 776.68 557 541 136.8

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