ASTROSAT CZTI

Data Quality Report

Orbit 13559

Creation date: 2024-06-27T16:42:36.434998
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/AS1G08_032T01_9000001998_13559cztM0_level2.evt modeM0/AS1G08_032T01_9000001998_13559cztM0_level2_quad_clean.evt
Size (bytes)1,036,733,760222,148,800
Size988.7 MB 211.9 MB
Events in quadrant A7,009,8841,391,804
Events in quadrant B7,444,4611,377,500
Events in quadrant C7,299,9421,492,308
Events in quadrant D8,602,0151,405,631

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03140
B03140
C03140
D03140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0315613
B0326703
C0316293
D0366173

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A15382680.442075%
B153821400.910155%
C15382600.390066%
D153824643.016513%

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 17408 15386 0 0 0.00% 0.00%
B 17408 15383 35 35 0.20% 0.23%
C 17408 15383 2 2 0.01% 0.01%
D 17408 15385 329 329 1.89% 2.14%

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 14 238 86148 233.84 1788 1750 360.9
A 1 162 26924 69.75 1788 1750 360.9
A 4 2 16711 41.45 1788 1750 360.9
B 4 142 120542 353.0 1777 1733 336.6
B 3 64 111734 326.83 1777 1733 336.6
B 3 209 92733 270.38 1777 1733 336.6
C 3 233 330215 809.93 1769 1782 405.5
C 7 238 32555 75.89 1769 1782 405.5
C 14 234 14470 31.29 1769 1782 405.5
D 5 222 678857 1613.3 1739 1693 419.7
D 13 104 332645 788.47 1739 1693 419.7
D 8 195 217011 512.98 1739 1693 419.7

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