ASTROSAT CZTI

Data Quality Report

Orbit 48040

Creation date: 2024-08-16T03:25:15.214173
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_217T01_9000006390_48040cztM0_level2.fits modeM0/AS1T05_217T01_9000006390_48040cztM0_level2_quad_clean.evt
Size (bytes)449,605,440106,096,320
Size428.8 MB 101.2 MB
Events in quadrant A6,763,968687,508
Events in quadrant B3,100,796737,453
Events in quadrant C2,782,195709,990
Events in quadrant D3,508,000639,121

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0242542
B0136632
C0129242
D0149794

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62823826.080866%
B62821312.085323%
C6282100.159185%
D62811442.292629%

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 7512 6283 151 151 2.01% 2.40%
B 7512 6283 70 70 0.93% 1.11%
C 7512 6283 0 0 0.00% 0.00%
D 7511 6282 101 101 1.34% 1.61%

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 3999578 27823.58 691 677 143.7
A 0 31 41284 282.53 691 677 143.7
A 0 243 24830 168.05 691 677 143.7
B 5 32 242131 1790.98 697 677 134.8
B 7 221 51656 378.13 697 677 134.8
B 0 198 28654 207.52 697 677 134.8
C 14 254 36541 225.74 686 691 158.8
C 12 2 26277 161.11 686 691 158.8
C 15 208 23620 144.38 686 691 158.8
D 2 249 273473 1623.2 680 657 168.1
D 11 192 159778 946.74 680 657 168.1
D 11 224 107930 638.25 680 657 168.1

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