ASTROSAT CZTI

Data Quality Report

Orbit 27414

Creation date: 2024-06-27T19:39:48.965306
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_249T01_9000003934_27414cztM0_level2.evt modeM0/AS1T03_249T01_9000003934_27414cztM0_level2_quad_clean.evt
Size (bytes)2,801,537,280528,955,200
Size2.6 GB 504.5 MB
Events in quadrant A18,669,1233,429,005
Events in quadrant B18,888,5223,455,969
Events in quadrant C19,372,3263,279,830
Events in quadrant D25,303,3243,199,047

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0800740
B0808760
C0820150
D01012320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0640
B0640
C0640
D0640

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A387122240.578632%
B387133150.813680%
C387136071.567949%
D3871313953.603441%

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 45017 38718 15 15 0.03% 0.04%
B 45018 38717 15 15 0.03% 0.04%
C 45018 38718 83 83 0.18% 0.21%
D 45018 38719 1173 1173 2.61% 3.03%

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 14 235 102197 103.52 4787 4688 941.9
A 13 254 66366 65.48 4787 4688 941.9
A 3 137 44797 42.58 4787 4688 941.9
B 12 111 110811 118.02 4752 4635 899.7
B 11 111 98971 104.86 4752 4635 899.7
B 14 111 89144 93.93 4752 4635 899.7
C 2 16 791863 738.51 4571 4606 1066.0
C 14 238 734975 685.14 4571 4606 1066.0
C 13 61 31586 25.31 4571 4606 1066.0
D 1 52 6618151 6137.82 4563 4443 1077.5
D 2 250 1126534 1041.35 4563 4443 1077.5
D 2 234 159796 144.17 4563 4443 1077.5

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