ASTROSAT CZTI

Data Quality Report

Orbit 25333

Creation date: 2024-06-27T19:16:28.882242
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/AS1A09_059T01_9000003706_25333cztM0_level2.evt modeM0/AS1A09_059T01_9000003706_25333cztM0_level2_quad_clean.evt
Size (bytes)508,014,720100,736,640
Size484.5 MB 96.1 MB
Events in quadrant A3,560,264676,769
Events in quadrant B3,002,619679,496
Events in quadrant C3,040,564650,831
Events in quadrant D5,371,345620,720

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147190
B0126510
C0125800
D0203530

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6061600.989936%
B6062450.742329%
C6062991.633124%
D60622904.783900%

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 7076 6062 0 0 0.00% 0.00%
B 7077 6063 0 0 0.00% 0.00%
C 7077 6063 0 0 0.00% 0.00%
D 7077 6063 210 210 2.97% 3.46%

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 15 173 601970 3900.34 767 751 154.1
A 13 254 9834 58.92 767 751 154.1
A 3 137 6649 38.26 767 751 154.1
B 3 112 19651 134.33 757 738 140.8
B 12 111 17028 115.7 757 738 140.8
B 0 190 15393 104.08 757 738 140.8
C 14 238 119344 683.86 741 744 173.4
C 0 207 22979 128.21 741 744 173.4
C 2 16 7461 38.73 741 744 173.4
D 12 235 905661 5098.33 740 719 177.5
D 8 195 822585 4630.29 740 719 177.5
D 1 52 469402 2640.5 740 719 177.5

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