ASTROSAT CZTI

Data Quality Report

Orbit 38319

Creation date: 2024-06-27T21:51:13.710895
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_001T12_9000005372_38319cztM0_level2.fits modeM0/AS1C07_001T12_9000005372_38319cztM0_level2_quad_clean.evt
Size (bytes)485,449,92078,223,680
Size463.0 MB 74.6 MB
Events in quadrant A2,583,097577,818
Events in quadrant B2,356,223593,829
Events in quadrant C2,404,444578,738
Events in quadrant D10,241,940272,109

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0107623
B0104492
C0101602
D0337922

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4937120.243063%
B4937190.384849%
C4937130.263318%
D4937265353.737087%

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 7030 4938 6 6 0.09% 0.12%
B 7030 4938 9 9 0.13% 0.18%
C 7030 4938 8 8 0.11% 0.16%
D 7030 4937 2631 2631 37.43% 53.29%

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 377109 3443.41 540 530 109.4
A 12 189 43856 396.17 540 530 109.4
A 13 248 36340 327.44 540 530 109.4
B 5 184 68759 660.56 541 527 103.3
B 4 81 45633 436.67 541 527 103.3
B 0 183 33931 323.39 541 527 103.3
C 15 214 210270 1665.55 539 542 125.9
C 0 10 38507 301.5 539 542 125.9
C 1 23 24744 192.2 539 542 125.9
D 10 203 6011613 55430.25 444 432 108.4
D 2 16 2097435 19336.87 444 432 108.4
D 13 138 204330 1880.18 444 432 108.4

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