ASTROSAT CZTI

Data Quality Report

Orbit 13611

Creation date: 2024-06-27T16:43:19.874648
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/AS1A04_012T01_9000002012_13611cztM0_level2.evt modeM0/AS1A04_012T01_9000002012_13611cztM0_level2_quad_clean.evt
Size (bytes)336,228,48050,607,360
Size320.7 MB 48.3 MB
Events in quadrant A2,277,343305,494
Events in quadrant B2,541,100305,114
Events in quadrant C2,364,097303,223
Events in quadrant D2,682,349290,582

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A098072
B0104971
C099031
D0108571

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0940
B0940
C0940
D0940

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A46671012.164131%
B46671493.192629%
C4667761.628455%
D4667871.864153%

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 4923 4669 0 0 0.00% 0.00%
B 4923 4669 5 5 0.10% 0.11%
C 4923 4669 3 3 0.06% 0.06%
D 4923 4669 5 5 0.10% 0.11%

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 1 162 10235 78.51 588 575 123.0
A 0 226 5415 39.34 588 575 123.0
A 12 194 4494 31.85 588 575 123.0
B 0 219 182599 1571.41 583 570 115.8
B 3 64 25028 211.14 583 570 115.8
B 3 209 15272 126.92 583 570 115.8
C 3 233 121942 907.84 568 571 133.7
C 0 207 14388 103.35 568 571 133.7
C 14 234 7229 49.8 568 571 133.7
D 8 195 277880 1990.62 570 553 139.3
D 5 222 100125 714.71 570 553 139.3
D 12 6 84997 606.13 570 553 139.3

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