ASTROSAT CZTI

Data Quality Report

Orbit 09968

Creation date: 2024-06-27T15:53:06.943603
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/AS1G07_047T01_9000001424_09968cztM0_level2.evt modeM0/AS1G07_047T01_9000001424_09968cztM0_level2_quad_clean.evt
Size (bytes)406,667,52085,432,320
Size387.8 MB 81.5 MB
Events in quadrant A2,643,147553,960
Events in quadrant B2,961,669558,683
Events in quadrant C2,528,908557,485
Events in quadrant D3,795,744519,894

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012388612
B013335681
C012105529
D015931895

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01206
B01202
C01202
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0112
B0111
C0111
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5662510.900742%
B5662671.183327%
C5693320.562094%
D56531993.520255%

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 7010 5853 7 7 0.10% 0.12%
B 7009 5863 22 22 0.31% 0.38%
C 7010 5873 0 0 0.00% 0.00%
D 7010 5852 130 130 1.85% 2.22%

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 15 174 54398 391.63 671 657 137.2
A 0 226 6234 40.64 671 657 137.2
A 12 194 5622 36.18 671 657 137.2
B 0 214 65208 496.94 671 656 129.9
B 10 245 56646 431.03 671 656 129.9
B 4 81 54392 413.67 671 656 129.9
C 13 61 4742 27.21 647 649 150.4
C 8 222 3078 16.15 647 649 150.4
C 14 67 1985 8.88 647 649 150.4
D 1 52 513173 3067.53 636 616 167.1
D 2 152 149109 888.69 636 616 167.1
D 2 16 142865 851.32 636 616 167.1

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