ASTROSAT CZTI

Data Quality Report

Orbit 46883

Creation date: 2024-06-27T23:28:56.027459
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_46883cztM0_level2.fits modeM0/AS1A13_053T01_9000006274_46883cztM0_level2_quad_clean.evt
Size (bytes)597,142,080109,172,160
Size569.5 MB 104.1 MB
Events in quadrant A6,768,775723,463
Events in quadrant B7,207,307713,300
Events in quadrant C3,317,145729,124
Events in quadrant D4,280,689662,436

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0243583
B0262882
C0149982
D0176142

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68513825.575828%
B685183612.202598%
C6851741.080134%
D68512493.634506%

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 7716 6852 86 86 1.11% 1.26%
B 7716 6852 440 440 5.70% 6.42%
C 7716 6852 61 61 0.79% 0.89%
D 7716 6852 142 142 1.84% 2.07%

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 3667302 23535.12 750 734 155.8
A 13 248 118000 752.71 750 734 155.8
A 9 191 56856 360.24 750 734 155.8
B 3 112 4047922 27695.36 737 712 146.1
B 14 167 96373 654.62 737 712 146.1
B 5 172 68591 464.5 737 712 146.1
C 14 254 393639 2262.5 742 745 173.7
C 1 3 18012 99.43 742 745 173.7
C 3 233 8886 46.88 742 745 173.7
D 1 52 779839 4231.58 739 713 184.1
D 13 249 293877 1592.23 739 713 184.1
D 11 192 80448 433.06 739 713 184.1

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