ASTROSAT CZTI

Data Quality Report

Orbit 43255

Creation date: 2024-06-27T22:49:49.230958
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/AS1A06_006T01_9000005860_43255cztM0_level2.fits modeM0/AS1A06_006T01_9000005860_43255cztM0_level2_quad_clean.evt
Size (bytes)313,750,08093,553,920
Size299.2 MB 89.2 MB
Events in quadrant A3,086,669618,855
Events in quadrant B2,394,411655,173
Events in quadrant C2,772,363618,741
Events in quadrant D2,937,553560,210

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0340
C0340
D0340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124242
B0108742
C0114652
D0125452

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5429180.331553%
B542950.092098%
C5429120.221035%
D5429851.565666%

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 7342 5430 7 7 0.10% 0.13%
B 7342 5430 0 0 0.00% 0.00%
C 7342 5430 8 8 0.11% 0.15%
D 7342 5430 72 72 0.98% 1.33%

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 573138 4627.68 604 593 123.7
A 12 189 115801 931.19 604 593 123.7
A 15 237 32783 260.18 604 593 123.7
B 0 189 15115 123.51 605 589 117.6
B 12 111 14944 122.06 605 589 117.6
B 11 111 13734 111.77 605 589 117.6
C 15 214 230634 1632.43 602 606 140.9
C 3 233 79573 560.4 602 606 140.9
C 14 254 79349 558.81 602 606 140.9
D 1 52 207430 1418.56 595 578 145.8
D 12 233 153976 1051.98 595 578 145.8
D 13 249 138753 947.59 595 578 145.8

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