ASTROSAT CZTI

Data Quality Report

Orbit 42788

Creation date: 2024-06-27T22:44:14.616696
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/AS1A05_013T01_9000005822_42788cztM0_level2.fits modeM0/AS1A05_013T01_9000005822_42788cztM0_level2_quad_clean.evt
Size (bytes)345,591,36089,925,120
Size329.6 MB 85.8 MB
Events in quadrant A2,921,323607,447
Events in quadrant B2,783,484600,348
Events in quadrant C2,511,282599,085
Events in quadrant D4,155,912537,308

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118811
B0120531
C0109221
D0160821

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5401100.185151%
B5402430.796001%
C540220.037023%
D54022745.072195%

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 7045 5402 3 3 0.04% 0.06%
B 7046 5403 24 24 0.34% 0.44%
C 7046 5403 0 0 0.00% 0.00%
D 7046 5403 324 324 4.60% 6.00%

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 558651 4527.11 594 583 123.3
A 2 79 21784 171.99 594 583 123.3
A 12 189 13794 107.17 594 583 123.3
B 10 247 214666 1859.43 585 569 115.1
B 0 229 197659 1711.72 585 569 115.1
B 0 245 34444 294.2 585 569 115.1
C 15 214 229102 1686.94 577 582 135.5
C 14 254 16362 116.49 577 582 135.5
C 5 250 6870 46.42 577 582 135.5
D 1 52 1663928 11683.72 571 554 142.4
D 5 171 63230 440.24 571 554 142.4
D 7 96 61178 425.83 571 554 142.4

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