ASTROSAT CZTI

Data Quality Report

Orbit 43227

Creation date: 2024-06-27T22:49:32.221477
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/AS1A06_006T01_9000005860_43227cztM0_level2.fits modeM0/AS1A06_006T01_9000005860_43227cztM0_level2_quad_clean.evt
Size (bytes)328,775,04086,898,240
Size313.5 MB 82.9 MB
Events in quadrant A4,282,833552,004
Events in quadrant B2,331,470614,128
Events in quadrant C2,441,297584,226
Events in quadrant D2,724,918530,066

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0310
C0310
D0310

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162742
B0103362
C0101363
D0114162

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A50003747.480000%
B5000180.360000%
C499930.060012%
D4999631.260252%

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 7033 5001 360 360 5.12% 7.20%
B 7033 5001 10 10 0.14% 0.20%
C 7032 5000 0 0 0.00% 0.00%
D 7032 5000 65 65 0.92% 1.30%

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 15 237 926782 8187.11 557 547 113.1
A 10 83 535067 4724.69 557 547 113.1
A 13 248 326092 2877.53 557 547 113.1
B 5 172 95971 870.96 566 550 109.6
B 12 111 13653 119.6 566 550 109.6
B 11 111 12436 108.49 566 550 109.6
C 15 214 210392 1583.76 564 568 132.5
C 15 159 14614 106.02 564 568 132.5
C 14 254 10971 78.52 564 568 132.5
D 12 16 260462 1912.53 561 546 135.9
D 1 52 187760 1377.57 561 546 135.9
D 2 249 43363 315.06 561 546 135.9

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