ASTROSAT CZTI

Data Quality Report

Orbit 17716

Creation date: 2024-06-27T17:39:57.870300
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/AS1T03_042T01_9000002630_17716cztM0_level2.evt modeM0/AS1T03_042T01_9000002630_17716cztM0_level2_quad_clean.evt
Size (bytes)803,782,080107,841,600
Size766.5 MB 102.8 MB
Events in quadrant A3,213,112776,470
Events in quadrant B3,342,245807,322
Events in quadrant C3,351,978763,397
Events in quadrant D13,990,207458,319

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137982
B0141012
C0140792
D0460772

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6589370.561542%
B6589580.880255%
C6589771.168614%
D6589421864.015784%

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 7909 6590 0 0 0.00% 0.00%
B 7909 6590 1 1 0.01% 0.02%
C 7909 6590 0 0 0.00% 0.00%
D 7909 6589 4061 4061 51.35% 61.63%

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 15 174 15213 85.9 831 817 167.6
A 0 226 7256 38.42 831 817 167.6
A 12 194 6646 34.78 831 817 167.6
B 0 189 21121 128.47 840 821 158.0
B 12 111 18212 110.06 840 821 158.0
B 11 111 15590 93.47 840 821 158.0
C 14 238 127895 683.88 802 810 185.8
C 5 218 43031 227.2 802 810 185.8
C 3 233 42674 225.28 802 810 185.8
D 7 238 11845416 89212.67 497 488 132.8
D 12 227 87590 656.03 497 488 132.8
D 7 223 62753 468.96 497 488 132.8

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