ASTROSAT CZTI

Data Quality Report

Orbit 05144

Creation date: 2024-06-27T14:51:55.572797
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/AS1G05_102T01_9000000650_05144cztM0_level2.evt modeM0/AS1G05_102T01_9000000650_05144cztM0_level2_quad_clean.evt
Size (bytes)394,643,52057,343,680
Size376.4 MB 54.7 MB
Events in quadrant A2,506,973343,221
Events in quadrant B3,238,019339,934
Events in quadrant C2,449,765341,523
Events in quadrant D3,379,008322,541

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114532
B0131421
C0113611
D0139837

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5560230.413669%
B5560631.133094%
C5560200.359712%
D55591592.860227%

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 5950 5561 0 0 0.00% 0.00%
B 5950 5561 40 40 0.67% 0.72%
C 5950 5561 0 0 0.00% 0.00%
D 5950 5561 154 154 2.59% 2.77%

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 39949 295.69 640 625 133.0
A 0 226 6362 43.14 640 625 133.0
A 12 194 6333 42.92 640 625 133.0
B 8 3 536529 4321.04 643 627 124.0
B 15 204 134747 1081.43 643 627 124.0
B 0 219 25105 197.37 643 627 124.0
C 8 128 14147 93.08 618 620 145.3
C 8 112 6846 42.84 618 620 145.3
C 8 144 5372 32.7 618 620 145.3
D 2 33 651572 4315.22 612 594 150.9
D 2 136 187287 1237.56 612 594 150.9
D 2 221 63676 418.16 612 594 150.9

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