ASTROSAT CZTI

Data Quality Report

Orbit 45590

Creation date: 2024-06-27T23:13:57.759859
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/AS1A13_071T04_9000006110_45590cztM0_level2.fits modeM0/AS1A13_071T04_9000006110_45590cztM0_level2_quad_clean.evt
Size (bytes)505,514,880112,573,440
Size482.1 MB 107.4 MB
Events in quadrant A5,723,823769,616
Events in quadrant B3,875,923772,542
Events in quadrant C3,039,920753,430
Events in quadrant D5,580,444670,153

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0208011
B0155525
C0133861
D0209651

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63531862.927751%
B63532964.659216%
C6353741.164804%
D63533856.060129%

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 7528 6353 14 14 0.19% 0.22%
B 7528 6354 138 138 1.83% 2.17%
C 7528 6354 19 19 0.25% 0.30%
D 7528 6354 282 282 3.75% 4.44%

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 2734123 17717.78 759 743 154.3
A 0 243 32856 208.16 759 743 154.3
A 0 227 10353 62.29 759 743 154.3
B 15 201 614809 4272.25 745 725 143.7
B 5 172 91932 634.54 745 725 143.7
B 0 183 74760 515.07 745 725 143.7
C 14 254 162368 949.16 734 737 170.3
C 12 249 13020 72.13 734 737 170.3
C 13 61 4883 24.35 734 737 170.3
D 1 52 1525234 8351.48 730 707 182.5
D 2 249 620582 3395.72 730 707 182.5
D 11 241 356003 1946.34 730 707 182.5

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