ASTROSAT CZTI

Data Quality Report

Orbit 49656

Creation date: 2024-12-11T10:11:26.929465
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/AS1T05_233T01_9000006438_49656cztM0_level2.fits modeM0/AS1T05_233T01_9000006438_49656cztM0_level2_quad_clean.evt
Size (bytes)1,301,503,68039,617,280
Size1.2 GB 37.8 MB
Events in quadrant A16,485,01729,790
Events in quadrant B10,041,274580,200
Events in quadrant C4,919,9853,049
Events in quadrant D16,148,45553,743

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0540180
B0349320
C0199530
D0530460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74767476100.000000%
B7476285338.162119%
C74777477100.000000%
D74777477100.000000%

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 7475 7475 5538 5538 74.09% 74.09%
B 7477 7476 2687 2687 35.94% 35.94%
C 7476 7476 0 0 0.00% 0.00%
D 7476 7476 5396 5396 72.18% 72.18%

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 99 9377233 209700.4 59 53 44.7
A 0 98 1143375 25567.93 59 53 44.7
A 10 83 1087576 24320.11 59 53 44.7
B 3 232 4632162 34586.6 619 600 133.9
B 3 216 631283 4709.68 619 600 133.9
B 4 206 626444 4673.55 619 600 133.9
C 4 210 909932 106162.26 9 8 8.6
C 15 163 627051 73158.09 9 8 8.6
C 15 180 558453 65154.66 9 8 8.6
D 15 40 2819437 42826.34 87 78 65.8
D 15 184 2577822 39156.19 87 78 65.8
D 7 45 2573400 39089.02 87 78 65.8

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