ASTROSAT CZTI

Data Quality Report

Orbit 29060

Creation date: 2024-06-27T19:59:47.969337
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/AS1A10_094T20_9000004164_29060cztM0_level2.evt modeM0/AS1A10_094T20_9000004164_29060cztM0_level2_quad_clean.evt
Size (bytes)248,621,76056,871,360
Size237.1 MB 54.2 MB
Events in quadrant A1,481,413386,122
Events in quadrant B1,517,820394,778
Events in quadrant C1,475,169376,490
Events in quadrant D2,848,755349,798

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0620
B0620
C0620
D0620

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A062571
B063331
C062211
D0105811

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3015772.553897%
B3015762.520730%
C3015993.283582%
D301533511.111111%

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 3715 3015 0 0 0.00% 0.00%
B 3714 3014 3 3 0.08% 0.10%
C 3715 3015 0 0 0.00% 0.00%
D 3715 3015 202 202 5.44% 6.70%

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 16089 201.57 376 367 78.0
A 1 113 14145 176.65 376 367 78.0
A 13 254 5368 64.12 376 367 78.0
B 5 255 20829 280.71 370 360 72.9
B 10 246 15427 206.63 370 360 72.9
B 14 167 10148 134.23 370 360 72.9
C 14 238 57191 669.68 360 361 84.9
C 2 114 7196 80.54 360 361 84.9
C 2 16 2955 30.57 360 361 84.9
D 1 52 1015696 11776.66 356 344 86.2
D 8 195 433733 5026.71 356 344 86.2
D 2 250 40009 460.06 356 344 86.2

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