ASTROSAT CZTI

Data Quality Report

Orbit 53603

Creation date: 2025-08-26T11:51:25.522705
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_004T05_9000006502_53603cztM0_level2.fits modeM0/AS1A14_004T05_9000006502_53603cztM0_level2_quad_clean.evt
Size (bytes)810,164,16081,244,800
Size772.6 MB 77.5 MB
Events in quadrant A5,998,642553,344
Events in quadrant B4,388,955653,942
Events in quadrant C9,240,765436,470
Events in quadrant D9,865,833369,751

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220381
B0172881
C0318861
D0336711

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6399107816.846382%
B64003525.500000%
C6400215433.656250%
D6400257940.296875%

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 7319 6399 822 822 11.23% 12.85%
B 7320 6400 144 144 1.97% 2.25%
C 7320 6401 1831 1831 25.01% 28.60%
D 7319 6399 2260 2260 30.88% 35.32%

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 63 2815025 17319.28 659 641 162.5
A 15 174 205761 1262.28 659 641 162.5
A 12 115 102281 625.48 659 641 162.5
B 10 28 464488 3159.2 690 664 146.8
B 10 254 438368 2981.29 690 664 146.8
B 5 172 168198 1141.11 690 664 146.8
C 15 224 4106208 25576.71 584 579 160.5
C 15 231 874736 5445.71 584 579 160.5
C 13 3 638508 3974.09 584 579 160.5
D 8 176 6277311 39712.09 544 519 158.1
D 2 62 380670 2405.14 544 519 158.1
D 7 70 276775 1747.82 544 519 158.1

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