ASTROSAT CZTI

Data Quality Report

Orbit 07315

Creation date: 2024-06-27T15:16:07.037273
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_051T01_9000000972_07315cztM0_level2.evt modeM0/AS1G06_051T01_9000000972_07315cztM0_level2_quad_clean.evt
Size (bytes)25,505,2802,612,160
Size24.3 MB 2.5 MB
Events in quadrant A189,2249,976
Events in quadrant B185,11010,492
Events in quadrant C181,00510,604
Events in quadrant D184,98810,124

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A12513186377920
B1-1-1
C1-1-1
D1-1-1

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0102
B091
C0113
D0102

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01144285
B01126291
C01126293
D01145277

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A41820.478469%
B41700.000000%
C41520.481928%
D41940.954654%

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 431 423 0 0 0.00% 0.00%
B 426 425 0 0 0.00% 0.00%
C 423 419 0 0 0.00% 0.00%
D 433 427 4 4 0.92% 0.94%

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 14 111 4630 388.69 46 45 11.8
A 8 15 4151 348.08 46 45 11.8
A 15 234 749 59.68 46 45 11.8
B 12 111 991 81.49 47 46 11.6
B 11 111 759 61.48 47 46 11.6
B 4 81 580 46.05 47 46 11.6
C 13 61 355 24.4 46 46 12.7
C 9 68 239 15.24 46 46 12.7
C 10 22 209 12.87 46 46 12.7
D 12 233 11607 884.51 44 42 13.1
D 1 20 5681 431.28 44 42 13.1
D 2 14 1503 111.74 44 42 13.1

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