ASTROSAT CZTI

Data Quality Report

Orbit 43346

Creation date: 2024-06-27T22:50:51.571437
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_158T01_9000005868_43346cztM0_level2.fits modeM0/AS1T05_158T01_9000005868_43346cztM0_level2_quad_clean.evt
Size (bytes)287,982,72083,721,600
Size274.6 MB 79.8 MB
Events in quadrant A2,907,955558,178
Events in quadrant B2,424,109574,645
Events in quadrant C2,385,839550,030
Events in quadrant D2,554,725503,880

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114822
B0103182
C0100012
D0109952

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4967511.026777%
B4967100.201329%
C496740.080532%
D4966480.966573%

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 6969 4968 29 29 0.42% 0.58%
B 6969 4968 0 0 0.00% 0.00%
C 6969 4968 0 0 0.00% 0.00%
D 6968 4967 43 43 0.62% 0.87%

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 528133 4517.04 564 553 116.8
A 15 237 191303 1633.17 564 553 116.8
A 3 137 6434 50.35 564 553 116.8
B 0 189 159586 1446.28 558 541 110.0
B 3 112 30492 272.36 558 541 110.0
B 0 245 19653 173.8 558 541 110.0
C 15 214 211298 1610.7 553 558 130.8
C 15 111 6961 48.94 553 558 130.8
C 3 233 5749 39.68 553 558 130.8
D 13 249 177310 1294.21 553 536 136.6
D 12 6 78157 568.28 553 536 136.6
D 2 249 70181 509.89 553 536 136.6

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