ASTROSAT CZTI

Data Quality Report

Orbit 43484

Creation date: 2024-06-27T22:52:31.896078
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/AS1A12_018T01_9000005874_43484cztM0_level2.fits modeM0/AS1A12_018T01_9000005874_43484cztM0_level2_quad_clean.evt
Size (bytes)442,892,16090,040,320
Size422.4 MB 85.9 MB
Events in quadrant A3,441,727624,561
Events in quadrant B3,030,039632,086
Events in quadrant C2,660,234596,593
Events in quadrant D6,821,607475,473

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138542
B0127792
C0115392
D0242282

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5673190.334920%
B5673340.599330%
C567430.052873%
D5673101717.927023%

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 7345 5674 5 5 0.07% 0.09%
B 7345 5674 23 23 0.31% 0.41%
C 7346 5675 3 3 0.04% 0.05%
D 7345 5674 1005 1005 13.68% 17.71%

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 668403 5342.73 608 596 125.0
A 15 222 317689 2536.87 608 596 125.0
A 15 237 56167 444.59 608 596 125.0
B 0 189 174846 1502.65 604 589 116.0
B 0 186 152712 1311.78 604 589 116.0
B 0 190 141113 1211.76 604 589 116.0
C 15 214 234516 1699.64 592 596 137.6
C 3 233 66960 482.2 592 596 137.6
C 0 239 18202 127.92 592 596 137.6
D 1 52 1744098 12853.93 549 532 135.6
D 1 47 1385372 10209.32 549 532 135.6
D 2 16 590145 4346.75 549 532 135.6

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