ASTROSAT CZTI

Data Quality Report

Orbit 36396

Creation date: 2024-06-27T21:26:18.523452
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/AS1T04_084T01_9000005198_36396cztM0_level2.evt modeM0/AS1T04_084T01_9000005198_36396cztM0_level2_quad_clean.evt
Size (bytes)470,306,88081,964,800
Size448.5 MB 78.2 MB
Events in quadrant A2,878,284530,159
Events in quadrant B4,022,179522,681
Events in quadrant C2,943,808524,418
Events in quadrant D4,006,986501,269

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122553
B0158392
C0121602
D0158982

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5770180.311958%
B57702704.679376%
C5770290.502600%
D57703856.672444%

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 7112 5771 0 0 0.00% 0.00%
B 7112 5771 175 175 2.46% 3.03%
C 7112 5771 16 16 0.22% 0.28%
D 7112 5771 360 360 5.06% 6.24%

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 192417 1429.89 663 650 134.1
A 15 223 93958 695.74 663 650 134.1
A 2 79 11237 78.94 663 650 134.1
B 5 255 560785 4428.75 648 630 126.5
B 5 172 486230 3839.3 648 630 126.5
B 0 189 200292 1578.59 648 630 126.5
C 15 214 244962 1603.68 648 653 152.3
C 0 10 167262 1093.64 648 653 152.3
C 13 61 4257 23.66 648 653 152.3
D 12 227 802522 5110.43 632 615 156.9
D 12 6 275397 1751.14 632 615 156.9
D 10 118 142998 907.38 632 615 156.9

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