ASTROSAT CZTI

Data Quality Report

Orbit 43382

Creation date: 2024-06-27T22:51:17.646292
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/AS1C07_001T10_9000005872_43382cztM0_level2.fits modeM0/AS1C07_001T10_9000005872_43382cztM0_level2_quad_clean.evt
Size (bytes)325,483,20089,259,840
Size310.4 MB 85.1 MB
Events in quadrant A3,107,703594,558
Events in quadrant B2,519,661612,316
Events in quadrant C3,156,647576,256
Events in quadrant D2,832,801531,509

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0230
C0230
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126602
B0113512
C0128062
D0125422

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5539490.884636%
B553950.090269%
C5539300.541614%
D5539951.715111%

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 7182 5540 30 30 0.42% 0.54%
B 7182 5540 0 0 0.00% 0.00%
C 7182 5540 14 14 0.19% 0.25%
D 7182 5540 75 75 1.04% 1.35%

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 10 83 645894 5330.47 592 579 121.1
A 15 237 125196 1029.37 592 579 121.1
A 12 238 22017 177.08 592 579 121.1
B 3 112 80767 694.02 594 578 115.5
B 0 189 30215 256.5 594 578 115.5
B 15 85 26863 227.49 594 578 115.5
C 3 233 602417 4438.76 582 585 135.6
C 15 214 231622 1703.99 582 585 135.6
C 14 254 27480 198.36 582 585 135.6
D 13 249 188453 1315.99 581 563 142.8
D 12 218 180614 1261.09 581 563 142.8
D 1 52 98878 688.6 581 563 142.8

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