ASTROSAT CZTI

Data Quality Report

Orbit 47313

Creation date: 2024-06-28T03:04:38.736739
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/AS1A13_093T23_9000006316_47313cztM0_level2.fits modeM0/AS1A13_093T23_9000006316_47313cztM0_level2_quad_clean.evt
Size (bytes)299,612,16062,239,680
Size285.7 MB 59.4 MB
Events in quadrant A3,978,377406,729
Events in quadrant B1,853,206438,365
Events in quadrant C2,545,832405,461
Events in quadrant D2,419,709367,756

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0780
B0780
C0780
D0780

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143411
B078581
C0100741
D097761

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A37672095.548182%
B3767320.849482%
C37671122.973188%
D37661594.221986%

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 4852 3768 109 109 2.25% 2.89%
B 4852 3768 2 2 0.04% 0.05%
C 4852 3768 70 70 1.44% 1.86%
D 4851 3767 139 139 2.87% 3.69%

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 2081369 22398.71 438 428 92.9
A 9 191 185902 1996.39 438 428 92.9
A 13 254 7153 72.39 438 428 92.9
B 0 190 38770 433.13 442 429 88.5
B 10 3 13629 149.12 442 429 88.5
B 12 111 11336 123.21 442 429 88.5
C 3 233 485227 4725.71 429 431 102.6
C 12 2 283552 2759.81 429 431 102.6
C 14 254 94080 912.87 429 431 102.6
D 8 176 410343 3819.53 425 412 107.3
D 11 192 225315 2095.53 425 412 107.3
D 13 29 26155 239.86 425 412 107.3

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