ASTROSAT CZTI

Data Quality Report

Orbit 09797

Creation date: 2024-06-27T15:50:46.820907
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/AS1G05_218T01_9000001394_09797cztM0_level2.evt modeM0/AS1G05_218T01_9000001394_09797cztM0_level2_quad_clean.evt
Size (bytes)444,772,80084,323,520
Size424.2 MB 80.4 MB
Events in quadrant A2,878,739545,272
Events in quadrant B2,945,237557,819
Events in quadrant C2,822,925534,034
Events in quadrant D4,416,613498,714

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01306
B01306
C013012
D01304

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013057600
B013225630
C013056689
D0183701128

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6000400.666667%
B5997490.817075%
C5964260.435949%
D59201462.466216%

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 7548 6188 0 0 0.00% 0.00%
B 7548 6188 3 3 0.04% 0.05%
C 7548 6174 0 0 0.00% 0.00%
D 7548 6147 78 78 1.03% 1.27%

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 0 226 6870 40.66 747 733 151.0
A 12 194 6056 35.26 747 733 151.0
A 13 253 5522 31.73 747 733 151.0
B 12 111 15748 105.72 750 732 142.0
B 11 111 12874 85.48 750 732 142.0
B 14 111 10062 65.69 750 732 142.0
C 5 128 5933 31.09 722 725 167.5
C 13 61 5397 27.89 722 725 167.5
C 8 222 3084 14.08 722 725 167.5
D 1 52 1548254 8493.02 700 686 182.2
D 2 152 104685 570.74 700 686 182.2
D 7 46 28843 154.53 700 686 182.2

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