ASTROSAT CZTI

Data Quality Report

Orbit 48011

Creation date: 2024-10-15T18:55:27.642507
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_218T01_9000006386_48011cztM0_level2.fits modeM0/AS1T05_218T01_9000006386_48011cztM0_level2_quad_clean.evt
Size (bytes)513,734,40098,832,960
Size489.9 MB 94.3 MB
Events in quadrant A7,237,859645,224
Events in quadrant B2,933,207713,015
Events in quadrant C2,811,444672,558
Events in quadrant D5,557,478533,300

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02602846
B01302013
C01291510
D02084566

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61485098.279115%
B6150510.829268%
C6152330.536411%
D614777412.591508%

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 7372 6158 416 416 5.64% 6.76%
B 7372 6158 16 16 0.22% 0.26%
C 7372 6158 22 22 0.30% 0.36%
D 7372 6158 835 835 11.33% 13.56%

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 3786015 27300.02 666 653 138.7
A 0 31 805209 5802.46 666 653 138.7
A 13 248 66348 473.79 666 653 138.7
B 0 200 81798 603.4 688 668 134.5
B 5 32 39202 286.6 688 668 134.5
B 0 198 27685 200.94 688 668 134.5
C 12 2 90849 569.38 671 676 158.4
C 14 254 73245 458.22 671 676 158.4
C 14 67 11343 67.35 671 676 158.4
D 2 37 2609780 16445.98 626 603 158.7
D 2 249 224995 1414.37 626 603 158.7
D 11 224 101056 633.17 626 603 158.7

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