ASTROSAT CZTI

Data Quality Report

Orbit 43619

Creation date: 2024-06-27T22:53:45.030765
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/AS1A12_095T02_9000005892_43619cztM0_level2.fits modeM0/AS1A12_095T02_9000005892_43619cztM0_level2_quad_clean.evt
Size (bytes)973,414,080100,955,520
Size928.3 MB 96.3 MB
Events in quadrant A5,581,459765,953
Events in quadrant B5,061,311811,197
Events in quadrant C14,363,631458,729
Events in quadrant D10,530,488569,382

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0209571
B0196241
C0471568
D0357931

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A641781212.653888%
B64172994.659498%
C6416480674.906484%
D6416287144.747506%

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 7617 6417 629 629 8.26% 9.80%
B 7617 6417 126 126 1.65% 1.96%
C 7615 6415 4628 4628 60.77% 72.14%
D 7615 6415 2278 2278 29.91% 35.51%

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 50 1144701 7358.28 759 745 155.5
A 10 83 819113 5264.0 759 745 155.5
A 14 239 395780 2540.99 759 745 155.5
B 4 206 667940 4438.45 783 761 150.3
B 5 235 417738 2773.97 783 761 150.3
B 0 155 203539 1348.99 783 761 150.3
C 15 174 4788691 43760.8 470 473 109.4
C 15 142 3520939 32174.48 470 473 109.4
C 3 233 1724242 15753.98 470 473 109.4
D 4 212 1460510 8853.26 637 619 164.9
D 4 216 1369964 8304.16 637 619 164.9
D 4 211 624939 3786.08 637 619 164.9

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