ASTROSAT CZTI

Data Quality Report

Orbit 07534

Creation date: 2024-06-27T15:20:55.689032
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/AS1G06_076T01_9000001038_07534cztM0_level2.evt modeM0/AS1G06_076T01_9000001038_07534cztM0_level2_quad_clean.evt
Size (bytes)295,683,84066,533,760
Size282.0 MB 63.5 MB
Events in quadrant A2,047,730425,870
Events in quadrant B2,132,036436,926
Events in quadrant C2,082,175420,623
Events in quadrant D2,370,966400,192

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A096122
B097251
C096401
D0106261

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0980
B0980
C0980
D0980

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4714270.572762%
B4714430.912176%
C4714190.403055%
D4714771.633432%

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 4964 4716 0 0 0.00% 0.00%
B 4964 4716 0 0 0.00% 0.00%
C 4964 4716 0 0 0.00% 0.00%
D 4964 4716 53 53 1.07% 1.12%

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 14 8813 75.18 530 516 110.4
A 0 226 4999 40.62 530 516 110.4
A 12 194 4588 36.9 530 516 110.4
B 4 173 15225 140.67 539 525 104.5
B 0 214 10808 98.4 539 525 104.5
B 12 111 10557 96.0 539 525 104.5
C 8 229 18891 150.39 522 525 122.1
C 8 128 10799 84.13 522 525 122.1
C 8 112 4775 34.8 522 525 122.1
D 5 233 156279 1236.76 513 497 126.0
D 2 152 87851 693.51 513 497 126.0
D 14 34 74150 584.74 513 497 126.0

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