ASTROSAT CZTI

Data Quality Report

Orbit 08194

Creation date: 2024-06-27T15:29:18.112024
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/AS1A03_106T01_9000001130_08194cztM0_level2.evt modeM0/AS1A03_106T01_9000001130_08194cztM0_level2_quad_clean.evt
Size (bytes)381,012,48099,040,320
Size363.4 MB 94.5 MB
Events in quadrant A2,761,211651,843
Events in quadrant B2,838,790659,593
Events in quadrant C2,641,195638,214
Events in quadrant D2,877,646619,139

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125892
B0127121
C0125231
D0131901

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6167220.356737%
B6167270.437814%
C616790.145938%
D6167570.924274%

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 7202 6168 0 0 0.00% 0.00%
B 7202 6168 1 1 0.01% 0.02%
C 7202 6168 0 0 0.00% 0.00%
D 7202 6168 51 51 0.71% 0.83%

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 14 16253 107.41 712 696 144.8
A 0 226 6869 42.62 712 696 144.8
A 12 194 6428 39.58 712 696 144.8
B 4 81 19676 140.42 713 697 135.2
B 0 214 14888 104.99 713 697 135.2
B 15 204 13459 94.42 713 697 135.2
C 13 61 5230 29.19 677 677 156.0
C 3 202 1712 6.64 677 677 156.0
C 7 247 1484 5.17 677 677 156.0
D 1 52 114774 685.25 678 655 166.5
D 2 14 56483 335.23 678 655 166.5
D 1 7 27907 163.64 678 655 166.5

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