ASTROSAT CZTI

Data Quality Report

Orbit 46868

Creation date: 2024-06-27T23:28:43.201984
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_9000006274_46868cztM0_level2.fits modeM0/AS1A13_053T01_9000006274_46868cztM0_level2_quad_clean.evt
Size (bytes)576,080,640107,452,800
Size549.4 MB 102.5 MB
Events in quadrant A6,633,167721,816
Events in quadrant B5,420,796722,111
Events in quadrant C3,868,030713,300
Events in quadrant D4,886,882632,136

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0239602
B0206984
C0160602
D0192192

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66613815.719862%
B66605297.942943%
C66611932.897463%
D66615197.791623%

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 7696 6662 80 80 1.04% 1.20%
B 7695 6661 267 267 3.47% 4.01%
C 7696 6662 142 142 1.85% 2.13%
D 7696 6662 393 393 5.11% 5.90%

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 3590086 23299.94 743 728 154.1
A 9 191 82899 533.4 743 728 154.1
A 13 248 40300 256.88 743 728 154.1
B 3 112 2276173 15825.33 730 708 143.8
B 5 173 88254 608.86 730 708 143.8
B 0 198 39315 268.5 730 708 143.8
C 1 241 928196 5517.67 725 728 168.1
C 14 254 86221 508.61 725 728 168.1
C 3 233 10356 57.28 725 728 168.1
D 13 249 788179 4470.67 705 684 176.1
D 12 233 583377 3307.99 705 684 176.1
D 1 52 497223 2818.89 705 684 176.1

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