ASTROSAT CZTI

Data Quality Report

Orbit 32732

Creation date: 2024-06-27T20:41:21.641139
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/AS1A10_123T04_9000004726_32732cztM0_level2.evt modeM0/AS1A10_123T04_9000004726_32732cztM0_level2_quad_clean.evt
Size (bytes)558,734,40065,064,960
Size532.9 MB 62.1 MB
Events in quadrant A3,118,529404,848
Events in quadrant B5,574,950400,591
Events in quadrant C2,596,887407,434
Events in quadrant D5,260,998374,463

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128073
B0201662
C0112282
D0195432

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5463771.409482%
B546396117.591067%
C5463140.256269%
D54634768.713161%

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 7046 5464 45 45 0.64% 0.82%
B 7046 5464 742 742 10.53% 13.58%
C 7046 5464 11 11 0.16% 0.20%
D 7046 5464 398 398 5.65% 7.28%

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 15 249 607092 4726.0 638 625 128.3
A 15 237 15135 113.07 638 625 128.3
A 13 254 9482 69.02 638 625 128.3
B 12 1 2573241 22521.35 599 586 114.2
B 0 199 228822 1998.01 599 586 114.2
B 0 197 91144 792.76 599 586 114.2
C 3 233 59400 406.54 620 624 144.6
C 0 10 51855 354.36 620 624 144.6
C 9 54 19998 134.01 620 624 144.6
D 2 250 402530 2858.47 597 585 140.6
D 12 218 339248 2408.43 597 585 140.6
D 10 203 325222 2308.69 597 585 140.6

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