ASTROSAT CZTI

Data Quality Report

Orbit 41298

Creation date: 2024-06-27T22:27:10.590445
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_106T01_9000005642_41298cztM0_level2.fits modeM0/AS1T05_106T01_9000005642_41298cztM0_level2_quad_clean.evt
Size (bytes)402,704,64088,989,120
Size384.0 MB 84.9 MB
Events in quadrant A3,411,902599,809
Events in quadrant B2,449,315639,006
Events in quadrant C3,203,329568,329
Events in quadrant D5,417,318505,022

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135253
B0110782
C0129072
D0197912

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0290

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A54631212.214900%
B546360.109830%
C54632734.997254%
D546357610.543657%

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 7257 5464 116 116 1.60% 2.12%
B 7257 5464 0 0 0.00% 0.00%
C 7257 5464 265 265 3.65% 4.85%
D 7257 5464 557 557 7.68% 10.19%

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 6 10 582626 4862.25 586 574 119.7
A 10 83 504868 4212.69 586 574 119.7
A 12 189 55059 455.15 586 574 119.7
B 7 202 48882 419.47 596 579 115.2
B 0 229 26355 223.84 596 579 115.2
B 12 111 14866 124.07 596 579 115.2
C 0 10 732048 5505.17 569 572 132.9
C 15 214 229727 1724.64 569 572 132.9
C 3 233 12637 90.8 569 572 132.9
D 2 249 985716 7268.8 557 542 135.5
D 2 120 872561 6433.92 557 542 135.5
D 1 52 431393 3178.9 557 542 135.5

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