ASTROSAT CZTI

Data Quality Report

Orbit 41110

Creation date: 2024-06-27T22:24:34.961652
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_044T19_9000005600_41110cztM0_level2.fits modeM0/AS1A12_044T19_9000005600_41110cztM0_level2_quad_clean.evt
Size (bytes)342,544,32089,697,600
Size326.7 MB 85.5 MB
Events in quadrant A2,893,545617,251
Events in quadrant B3,408,190608,794
Events in quadrant C2,793,523590,272
Events in quadrant D3,182,730538,044

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115393
B0133252
C0113402
D0128622

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5160200.387597%
B51602985.775194%
C5160510.988372%
D51601312.538760%

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 7013 5161 2 2 0.03% 0.04%
B 7013 5161 233 233 3.32% 4.51%
C 7013 5161 25 25 0.36% 0.48%
D 7013 5161 104 104 1.48% 2.02%

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 503228 3989.56 613 602 126.0
A 2 79 8831 65.32 613 602 126.0
A 13 254 8375 61.7 613 602 126.0
B 0 245 908279 7864.03 597 582 115.4
B 0 186 44927 384.19 597 582 115.4
B 5 255 42495 363.12 597 582 115.4
C 15 214 226728 1632.3 589 593 138.5
C 14 254 200921 1446.02 589 593 138.5
C 0 10 63691 455.46 589 593 138.5
D 13 249 317367 2216.59 588 571 142.9
D 2 16 250548 1749.07 588 571 142.9
D 2 249 238405 1664.1 588 571 142.9

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