ASTROSAT CZTI

Data Quality Report

Orbit 24273

Creation date: 2024-06-27T19:04:12.248255
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/AS1C05_007T01_9000003588_24273cztM0_level2.evt modeM0/AS1C05_007T01_9000003588_24273cztM0_level2_quad_clean.evt
Size (bytes)553,495,680102,948,480
Size527.9 MB 98.2 MB
Events in quadrant A3,704,510675,780
Events in quadrant B3,449,604697,718
Events in quadrant C3,893,130663,064
Events in quadrant D5,280,112632,865

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148022
B0140692
C0157602
D0205572

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64231542.397634%
B6423691.074264%
C64231271.977269%
D64231422.210805%

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 7748 6423 93 93 1.20% 1.45%
B 7748 6423 1 1 0.01% 0.02%
C 7748 6424 14 14 0.18% 0.22%
D 7748 6423 56 56 0.72% 0.87%

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 6 16 351196 2009.59 871 857 174.3
A 13 254 9355 48.75 871 857 174.3
A 0 226 7653 38.98 871 857 174.3
B 12 111 19174 111.26 877 855 164.6
B 11 111 16848 97.13 877 855 164.6
B 14 111 15276 87.59 877 855 164.6
C 7 247 288678 1457.1 849 858 197.5
C 2 16 153964 775.1 849 858 197.5
C 14 238 138191 695.25 849 858 197.5
D 1 52 1191895 5876.7 850 832 202.7
D 8 195 739052 3642.38 850 832 202.7
D 12 233 87657 428.39 850 832 202.7

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