ASTROSAT CZTI

Data Quality Report

Orbit 41290

Creation date: 2024-06-27T22:27:04.866970
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_011T42_9000005640_41290cztM0_level2.fits modeM0/AS1A12_011T42_9000005640_41290cztM0_level2_quad_clean.evt
Size (bytes)344,848,32095,650,560
Size328.9 MB 91.2 MB
Events in quadrant A3,104,497647,637
Events in quadrant B2,565,133663,401
Events in quadrant C3,222,134607,849
Events in quadrant D3,419,480570,483

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125943
B0117042
C0131702
D0141822

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5825140.240343%
B582570.120172%
C58251923.296137%
D58251492.557940%

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 9291 5827 4 4 0.04% 0.07%
B 9291 5827 0 0 0.00% 0.00%
C 9291 5827 182 182 1.96% 3.12%
D 9290 5826 156 156 1.68% 2.68%

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 538761 4027.23 652 640 133.6
A 12 189 29688 217.39 652 640 133.6
A 13 6 9055 62.98 652 640 133.6
B 12 111 16099 122.1 646 627 126.7
B 11 111 15173 114.79 646 627 126.7
B 14 111 14385 108.58 646 627 126.7
C 0 10 476531 3262.59 622 627 145.9
C 15 214 246438 1685.17 622 627 145.9
C 12 249 63253 429.34 622 627 145.9
D 2 249 348523 2233.32 630 612 155.8
D 13 249 267496 1713.19 630 612 155.8
D 1 52 200379 1282.35 630 612 155.8

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