ASTROSAT CZTI

Data Quality Report

Orbit 23434

Creation date: 2024-06-27T18:54:14.525005
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/AS1A07_138T01_9000003466_23434cztM0_level2.evt modeM0/AS1A07_138T01_9000003466_23434cztM0_level2_quad_clean.evt
Size (bytes)341,616,96054,432,000
Size325.8 MB 51.9 MB
Events in quadrant A2,301,241345,704
Events in quadrant B2,430,993345,187
Events in quadrant C2,383,828328,877
Events in quadrant D2,934,163322,560

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0880
B0880
C0880
D0880

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A092330
B097710
C095070
D0113670

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A433720.046115%
B433850.115260%
C4338220.507146%
D43381132.604887%

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 4337 4337 0 0 0.00% 0.00%
B 4338 4338 0 0 0.00% 0.00%
C 4338 4338 0 0 0.00% 0.00%
D 4338 4338 109 109 2.51% 2.51%

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 13 254 6820 52.3 596 586 119.2
A 0 226 5166 38.43 596 586 119.2
A 3 137 4569 33.42 596 586 119.2
B 0 190 77715 711.42 582 569 108.4
B 0 189 51313 467.94 582 569 108.4
B 0 229 24920 224.56 582 569 108.4
C 14 238 92127 709.88 563 568 129.0
C 10 9 83138 640.18 563 568 129.0
C 0 207 7463 53.46 563 568 129.0
D 1 52 565103 4107.51 570 555 137.4
D 13 104 122607 888.02 570 555 137.4
D 7 238 47363 340.56 570 555 137.4

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