ASTROSAT CZTI

Data Quality Report

Orbit 29305

Creation date: 2024-06-27T20:02:35.290047
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/AS1A10_050T01_9000004212_29305cztM0_level2.evt modeM0/AS1A10_050T01_9000004212_29305cztM0_level2_quad_clean.evt
Size (bytes)622,788,48069,822,720
Size593.9 MB 66.6 MB
Events in quadrant A2,570,721458,441
Events in quadrant B4,427,786440,105
Events in quadrant C5,964,394429,072
Events in quadrant D5,533,132408,259

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0112001
B0166961
C0215681
D0201761

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5392230.426558%
B53935019.289820%
C539394717.559800%
D539375513.999629%

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 5962 5393 4 4 0.07% 0.07%
B 5963 5394 329 329 5.52% 6.10%
C 5963 5394 113 113 1.90% 2.09%
D 5963 5394 527 527 8.84% 9.77%

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 57830 433.23 650 634 132.0
A 13 254 11071 79.05 650 634 132.0
A 3 137 6173 41.95 650 634 132.0
B 5 255 1360393 11314.52 623 606 120.2
B 10 245 578365 4807.42 623 606 120.2
B 12 111 14287 113.84 623 606 120.2
C 3 233 3386686 24884.96 574 577 136.1
C 14 238 179558 1315.35 574 577 136.1
C 14 254 135527 991.77 574 577 136.1
D 1 52 2056478 14127.16 599 584 145.5
D 12 233 433461 2974.53 599 584 145.5
D 7 80 224629 1539.53 599 584 145.5

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