ASTROSAT CZTI

Data Quality Report

Orbit 32048

Creation date: 2024-06-27T20:35:50.208738
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/AS1T04_046T01_9000004680_32048cztM0_level2.evt modeM0/AS1T04_046T01_9000004680_32048cztM0_level2_quad_clean.evt
Size (bytes)374,146,56049,302,720
Size356.8 MB 47.0 MB
Events in quadrant A2,346,963308,353
Events in quadrant B3,428,612310,109
Events in quadrant C2,580,980298,626
Events in quadrant D2,704,300294,753

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A09954365
B013188611
C011008459
D011141488

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A031
B043
C032
D064

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0822
B0831
C0842
D0812

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3990290.726817%
B3971802.014606%
C39732075.210169%
D3965180.453972%

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 7549 4032 0 0 0.00% 0.00%
B 7549 4024 1 1 0.01% 0.02%
C 7547 4019 14 14 0.19% 0.35%
D 7549 4018 2 2 0.03% 0.05%

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 13 6 8714 68.88 605 597 117.8
A 13 254 7379 57.55 605 597 117.8
A 0 226 5146 38.6 605 597 117.8
B 6 159 1058981 9924.0 589 577 106.7
B 0 190 24526 224.55 589 577 106.7
B 10 245 15325 138.28 589 577 106.7
C 0 10 134654 1028.94 577 585 130.3
C 14 238 115854 884.66 577 585 130.3
C 14 254 26184 196.47 577 585 130.3
D 8 195 461774 3371.22 590 578 136.8
D 2 234 16428 115.86 590 578 136.8
D 2 120 7162 48.13 590 578 136.8

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