ASTROSAT CZTI

Data Quality Report

Orbit 47416

Creation date: 2024-07-05T11:00:59.365033
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_053T01_9000006326_47416cztM0_level2.fits modeM0/AS1A13_053T01_9000006326_47416cztM0_level2_quad_clean.evt
Size (bytes)519,154,560106,079,040
Size495.1 MB 101.2 MB
Events in quadrant A7,429,247660,213
Events in quadrant B3,229,017764,035
Events in quadrant C3,576,217708,604
Events in quadrant D4,491,082636,571

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0261302
B0139222
C0150662
D0179422

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A633980012.620287%
B63391081.703739%
C63392433.833412%
D63394316.799180%

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 7544 6340 431 431 5.71% 6.80%
B 7543 6339 25 25 0.33% 0.39%
C 7543 6338 207 207 2.74% 3.27%
D 7543 6338 347 347 4.60% 5.47%

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 3643892 24899.43 714 700 146.3
A 9 191 700588 4783.39 714 700 146.3
A 9 240 306648 2091.0 714 700 146.3
B 5 255 64132 442.11 736 715 143.4
B 0 155 49798 342.18 736 715 143.4
B 5 32 49229 338.21 736 715 143.4
C 12 2 735481 4516.88 702 705 162.7
C 0 207 89619 546.58 702 705 162.7
C 3 233 10832 62.25 702 705 162.7
D 2 165 1014673 5757.99 705 681 176.1
D 12 128 275512 1560.64 705 681 176.1
D 2 249 134091 757.57 705 681 176.1

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