ASTROSAT CZTI

Data Quality Report

Orbit 22143

Creation date: 2024-06-27T18:37:22.187630
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/AS1T03_145T01_9000003278_22143cztM0_level2.evt modeM0/AS1T03_145T01_9000003278_22143cztM0_level2_quad_clean.evt
Size (bytes)566,110,08081,080,640
Size539.9 MB 77.3 MB
Events in quadrant A3,176,731515,823
Events in quadrant B3,316,043530,740
Events in quadrant C3,272,005507,291
Events in quadrant D6,936,470444,957

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135242
B0138592
C0137092
D0249862

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6535480.734507%
B6535620.948738%
C6535931.423106%
D6535120018.362663%

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 7624 6535 0 0 0.00% 0.00%
B 7624 6535 3 3 0.04% 0.05%
C 7624 6535 0 0 0.00% 0.00%
D 7624 6535 1202 1202 15.77% 18.39%

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 13 254 10477 58.82 824 811 164.3
A 0 226 6892 37.0 824 811 164.3
A 3 137 6878 36.92 824 811 164.3
B 3 64 42282 268.19 826 808 154.6
B 10 246 24923 155.94 826 808 154.6
B 12 111 18737 115.94 826 808 154.6
C 14 238 128083 685.49 802 809 185.7
C 10 22 11904 59.76 802 809 185.7
C 13 61 5456 25.03 802 809 185.7
D 1 52 3470882 19150.26 750 730 181.2
D 7 223 349426 1924.3 750 730 181.2
D 13 104 230635 1268.75 750 730 181.2

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