ASTROSAT CZTI

Data Quality Report

Orbit 05807

Creation date: 2024-06-27T14:59:24.110209
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/AS1G06_089T01_9000000746_05807cztM0_level2.evt modeM0/AS1G06_089T01_9000000746_05807cztM0_level2_quad_clean.evt
Size (bytes)438,433,92085,014,720
Size418.1 MB 81.1 MB
Events in quadrant A3,237,376533,556
Events in quadrant B3,320,021537,963
Events in quadrant C3,097,974525,602
Events in quadrant D3,159,528502,940

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144003
B0142542
C0140822
D0143752

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68081722.526439%
B68081542.262045%
C68081081.586369%
D68081602.350176%

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 7253 6810 4 4 0.06% 0.06%
B 7253 6810 2 2 0.03% 0.03%
C 7253 6810 3 3 0.04% 0.04%
D 7253 6810 21 21 0.29% 0.31%

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 15 79 121676 728.85 804 783 165.9
A 0 50 19853 114.97 804 783 165.9
A 12 194 7922 43.04 804 783 165.9
B 15 204 81171 515.88 808 789 155.8
B 4 81 39406 247.84 808 789 155.8
B 15 85 21221 131.13 808 789 155.8
C 1 16 59891 326.31 776 778 181.2
C 13 61 6067 29.2 776 778 181.2
C 8 79 5240 24.63 776 778 181.2
D 4 95 51656 261.5 781 754 194.7
D 1 31 38304 192.9 781 754 194.7
D 2 14 35425 178.11 781 754 194.7

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