ASTROSAT CZTI

Data Quality Report

Orbit 46334

Creation date: 2024-06-27T23:21:53.430254
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/AS1A13_070T05_9000006198_46334cztM0_level2.fits modeM0/AS1A13_070T05_9000006198_46334cztM0_level2_quad_clean.evt
Size (bytes)955,321,92096,019,200
Size911.1 MB 91.6 MB
Events in quadrant A14,557,051349,110
Events in quadrant B9,588,373656,609
Events in quadrant C3,428,026783,842
Events in quadrant D7,211,020596,344

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0483410
B0337122
C0157190
D0267660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7484443059.192945%
B7483170222.744888%
C7484280.374131%
D7484126116.849278%

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 7484 7483 3597 3597 48.06% 48.07%
B 7483 7483 1221 1221 16.32% 16.32%
C 7484 7484 20 20 0.27% 0.27%
D 7484 7484 1028 1028 13.74% 13.74%

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 15 223 8956763 76142.75 561 549 117.6
A 10 83 2312700 19657.14 561 549 117.6
A 15 14 844823 7177.74 561 549 117.6
B 3 112 3838888 26556.04 734 711 144.5
B 4 171 2074041 14345.21 734 711 144.5
B 5 172 531934 3675.49 734 711 144.5
C 12 2 189117 986.85 809 812 190.8
C 3 233 37559 192.58 809 812 190.8
C 0 207 28515 145.18 809 812 190.8
D 13 249 2384582 12944.05 730 706 184.2
D 1 52 888370 4819.87 730 706 184.2
D 12 1 728279 3950.6 730 706 184.2

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