ASTROSAT CZTI

Data Quality Report

Orbit 43402

Creation date: 2024-06-27T22:51:34.164265
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/AS1A12_018T01_9000005874_43402cztM0_level2.fits modeM0/AS1A12_018T01_9000005874_43402cztM0_level2_quad_clean.evt
Size (bytes)298,368,00089,003,520
Size284.5 MB 84.9 MB
Events in quadrant A2,876,927592,740
Events in quadrant B2,425,658619,906
Events in quadrant C2,610,972590,481
Events in quadrant D2,729,223530,951

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0116982
B0107352
C0109102
D0118852

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0320
C0320
D0320

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5152521.009317%
B5152200.388199%
C5152160.310559%
D51521011.960404%

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 7274 5153 46 46 0.63% 0.89%
B 7274 5153 13 13 0.18% 0.25%
C 7274 5153 12 12 0.16% 0.23%
D 7274 5153 90 90 1.24% 1.75%

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 556110 4950.8 555 545 112.2
A 15 237 146381 1299.59 555 545 112.2
A 13 248 16048 138.15 555 545 112.2
B 0 189 98668 916.14 562 547 107.1
B 0 245 62346 577.01 562 547 107.1
B 5 255 47666 439.94 562 547 107.1
C 15 214 212503 1667.45 549 552 127.1
C 3 233 155683 1220.44 549 552 127.1
C 15 159 84668 661.75 549 552 127.1
D 13 249 264247 1983.97 539 523 132.9
D 1 52 119202 892.81 539 523 132.9
D 12 6 93727 701.16 539 523 132.9

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