ASTROSAT CZTI

Data Quality Report

Orbit 10273

Creation date: 2024-06-27T15:57:17.478167
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/AS1C02_021T01_9000001482_10273cztM0_level2.evt modeM0/AS1C02_021T01_9000001482_10273cztM0_level2_quad_clean.evt
Size (bytes)428,791,68082,080,000
Size408.9 MB 78.3 MB
Events in quadrant A2,984,775514,239
Events in quadrant B3,382,766516,410
Events in quadrant C2,866,281509,387
Events in quadrant D3,308,291490,232

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133133
B0144242
C0132232
D0143072

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6528310.474877%
B6528941.439951%
C6528140.214461%
D6528761.164216%

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 7618 6529 0 0 0.00% 0.00%
B 7618 6529 31 31 0.41% 0.47%
C 7618 6529 0 0 0.00% 0.00%
D 7618 6529 38 38 0.50% 0.58%

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 8 15 46551 295.0 760 742 155.3
A 0 226 6939 39.91 760 742 155.3
A 3 1 6791 38.95 760 742 155.3
B 4 239 288600 1999.78 760 742 143.9
B 11 51 79036 543.92 760 742 143.9
B 0 214 24021 161.72 760 742 143.9
C 13 61 5452 27.72 734 736 170.1
C 14 67 3544 16.5 734 736 170.1
C 3 202 1804 6.28 734 736 170.1
D 8 195 136405 772.62 726 704 175.6
D 1 52 98965 559.45 726 704 175.6
D 2 14 89992 508.37 726 704 175.6

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