ASTROSAT CZTI

Data Quality Report

Orbit 45515

Creation date: 2024-06-27T23:13:10.110318
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_031T02_9000006100_45515cztM0_level2.fits modeM0/AS1A13_031T02_9000006100_45515cztM0_level2_quad_clean.evt
Size (bytes)479,626,560113,195,520
Size457.4 MB 108.0 MB
Events in quadrant A5,926,981757,353
Events in quadrant B3,744,876788,900
Events in quadrant C3,225,012750,480
Events in quadrant D4,324,452652,618

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0222002
B0157082
C0144112
D0174572

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68602353.425656%
B68602103.061224%
C68601151.676385%
D68604646.763848%

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 7900 6861 4 4 0.05% 0.06%
B 7900 6861 66 66 0.84% 0.96%
C 7900 6861 28 28 0.35% 0.41%
D 7900 6861 277 277 3.51% 4.04%

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 2807897 17085.2 796 779 164.3
A 9 191 22420 131.72 796 779 164.3
A 2 79 14955 86.28 796 779 164.3
B 15 201 288671 1836.62 792 768 156.8
B 5 172 218550 1389.3 792 768 156.8
B 0 186 54671 343.86 792 768 156.8
C 14 254 121285 650.29 784 786 185.3
C 12 2 43355 229.73 784 786 185.3
C 3 233 6895 32.97 784 786 185.3
D 13 249 787938 4079.18 764 739 193.0
D 2 249 202908 1047.62 764 739 193.0
D 1 52 152333 785.54 764 739 193.0

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