ASTROSAT CZTI

Data Quality Report

Orbit 09359

Creation date: 2024-06-27T15:44:55.117234
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/AS1G07_022T01_9000001322_09359cztM0_level2.evt modeM0/AS1G07_022T01_9000001322_09359cztM0_level2_quad_clean.evt
Size (bytes)74,658,24015,361,920
Size71.2 MB 14.7 MB
Events in quadrant A570,99576,945
Events in quadrant B555,596109,857
Events in quadrant C545,371101,338
Events in quadrant D515,14696,969

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0106248392
B077675418
C081405758
D080935863

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07355
B07351
C07446
D07353

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C031
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A830172.048193%
B112520.177778%
C107120.186741%
D105270.665399%

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 3691 1278 2 2 0.05% 0.16%
B 3674 1707 1 1 0.03% 0.06%
C 3669 1650 0 0 0.00% 0.00%
D 3684 1576 2 2 0.05% 0.13%

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 8 5 180554 8331.07 96 94 21.7
A 13 251 9786 447.44 96 94 21.7
A 1 162 4181 188.68 96 94 21.7
B 4 173 12546 453.59 130 127 27.4
B 4 80 6986 250.52 130 127 27.4
B 0 219 6761 242.3 130 127 27.4
C 9 68 77229 2621.21 119 119 29.4
C 13 61 916 27.09 119 119 29.4
C 8 222 715 20.26 119 119 29.4
D 12 227 14905 471.2 119 116 31.4
D 1 52 14291 451.64 119 116 31.4
D 10 199 9942 313.07 119 116 31.4

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