ASTROSAT CZTI

Data Quality Report

Orbit 52513

Creation date: 2025-06-13T16:00:31.139593
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/AS1A13_037T01_9000006476_52513cztM0_level2.fits modeM0/AS1A13_037T01_9000006476_52513cztM0_level2_quad_clean.evt
Size (bytes)489,628,80050,325,120
Size466.9 MB 48.0 MB
Events in quadrant A1,659,523378,905
Events in quadrant B6,133,107270,654
Events in quadrant C6,032,096276,608
Events in quadrant D3,986,121312,789

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A081820
B0210270
C0207390
D0146980

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0800
B0800
C0800
D0800

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A403730.074313%
B4038155138.410104%
C4038118129.247152%
D40383979.831600%

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 4037 4037 1 1 0.02% 0.02%
B 4038 4038 1497 1497 37.07% 37.07%
C 4038 4038 1301 1301 32.22% 32.22%
D 4038 4038 469 469 11.61% 11.61%

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 5 240 19653 188.79 406 397 102.0
A 11 3 19206 184.41 406 397 102.0
A 13 248 9429 88.55 406 397 102.0
B 10 44 4249723 60029.47 322 311 70.8
B 4 171 398194 5620.71 322 311 70.8
B 10 254 107226 1510.34 322 311 70.8
C 15 224 2133318 22270.91 344 341 95.8
C 15 233 2122037 22153.12 344 341 95.8
C 13 3 284822 2970.33 344 341 95.8
D 15 93 1622680 14987.13 372 356 108.2
D 6 42 251412 2319.27 372 356 108.2
D 8 176 189548 1747.77 372 356 108.2

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