ASTROSAT CZTI

Data Quality Report

Orbit 43099

Creation date: 2024-06-27T22:48:00.985878
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_153T01_9000005848_43099cztM0_level2.fits modeM0/AS1T05_153T01_9000005848_43099cztM0_level2_quad_clean.evt
Size (bytes)318,317,76090,066,240
Size303.6 MB 85.9 MB
Events in quadrant A3,119,080623,525
Events in quadrant B2,635,688619,590
Events in quadrant C2,536,429582,307
Events in quadrant D3,089,759540,147

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0260
C0260
D0260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123712
B0112212
C0106912
D0127972

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5160531.027132%
B5160440.852713%
C5160230.445736%
D51601222.364341%

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 7283 5161 35 35 0.48% 0.68%
B 7283 5161 24 24 0.33% 0.47%
C 7283 5161 21 21 0.29% 0.41%
D 7283 5161 89 89 1.22% 1.72%

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 597477 5045.45 579 567 118.3
A 15 237 197736 1666.59 579 567 118.3
A 12 189 56437 472.25 579 567 118.3
B 0 229 135277 1235.96 571 554 109.0
B 5 255 86486 788.34 571 554 109.0
B 0 245 67929 618.1 571 554 109.0
C 15 214 217584 1672.88 561 563 129.7
C 14 254 111755 857.11 561 563 129.7
C 1 16 8828 63.71 561 563 129.7
D 12 233 511635 3769.22 561 546 135.6
D 1 52 248357 1827.58 561 546 135.6
D 5 32 46429 338.38 561 546 135.6

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