ASTROSAT CZTI

Data Quality Report

Orbit 53665

Creation date: 2025-08-30T01:29:02.984460
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/AS1A14_022T05_9000006504_53665cztM0_level2.fits modeM0/AS1A14_022T05_9000006504_53665cztM0_level2_quad_clean.evt
Size (bytes)1,172,963,52082,693,440
Size1.1 GB 78.9 MB
Events in quadrant A14,511,805366,471
Events in quadrant B4,690,584758,136
Events in quadrant C16,491,102233,598
Events in quadrant D7,132,759610,248

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0484210
B0194090
C0542374
D0264420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7688431256.087409%
B76883124.058273%
C7688521267.793965%
D768879010.275754%

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 7687 7687 3777 3777 49.13% 49.13%
B 7688 7688 177 177 2.30% 2.30%
C 7688 7688 4988 4988 64.88% 64.88%
D 7688 7688 739 739 9.61% 9.61%

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 3 78 4816359 30995.94 612 596 155.4
A 3 63 3832365 24662.61 612 596 155.4
A 14 254 2457311 15812.28 612 596 155.4
B 5 172 812982 4715.48 805 779 172.2
B 5 185 299480 1734.19 805 779 172.2
B 4 170 96223 554.13 805 779 172.2
C 1 241 9158052 69573.15 468 463 131.6
C 15 224 3367687 25581.88 468 463 131.6
C 7 80 1158189 8795.62 468 463 131.6
D 2 37 944829 4184.31 780 742 225.6
D 10 172 919807 4073.41 780 742 225.6
D 2 120 567844 2513.47 780 742 225.6

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