ASTROSAT CZTI

Data Quality Report

Orbit 48212

Creation date: 2024-08-27T17:03:24.470629
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/AS1C09_004T05_9000006416_48212cztM0_level2.fits modeM0/AS1C09_004T05_9000006416_48212cztM0_level2_quad_clean.evt
Size (bytes)376,450,56077,054,400
Size359.0 MB 73.5 MB
Events in quadrant A6,341,248656,110
Events in quadrant B1,138,65940,863
Events in quadrant C2,554,964629,579
Events in quadrant D3,431,277588,816

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0236241
B067541
C0121221
D0140991

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59392343.940057%
B59405940100.000000%
C5940420.707071%
D5940881.481481%

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 6964 5939 17 17 0.24% 0.29%
B 6964 5939 2 2 0.03% 0.03%
C 6965 5941 2 2 0.03% 0.03%
D 6965 5940 30 30 0.43% 0.51%

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 3805647 28153.6 650 637 135.2
A 13 254 12136 85.08 650 637 135.2
A 3 137 7303 49.32 650 637 135.2
B 2 177 812404 76723.65 42 41 10.6
B 10 7 76128 7186.04 42 41 10.6
B 5 255 34559 3260.05 42 41 10.6
C 12 2 22111 143.17 638 638 150.0
C 14 254 17272 110.91 638 638 150.0
C 7 207 15352 98.11 638 638 150.0
D 2 165 542544 3370.84 644 625 160.8
D 12 128 135595 839.54 644 625 160.8
D 2 249 108345 670.04 644 625 160.8

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