ASTROSAT CZTI

Data Quality Report

Orbit 03034

Creation date: 2024-06-27T14:23:45.041936
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/AS1G05_237T02_9000000422_03034cztM0_level2.evt modeM0/AS1G05_237T02_9000000422_03034cztM0_level2_quad_clean.evt
Size (bytes)352,036,80080,040,960
Size335.7 MB 76.3 MB
Events in quadrant A2,243,634505,293
Events in quadrant B3,083,598508,592
Events in quadrant C2,206,429526,756
Events in quadrant D2,766,583511,886

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0420
B0420
C0420
D0430

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0107723
B0128402
C0108012
D0123692

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A530370.132001%
B5303170.320573%
C530360.113144%
D5303591.112578%

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 7489 5304 2 2 0.03% 0.04%
B 7489 5304 7 7 0.09% 0.13%
C 7489 5304 5 5 0.07% 0.09%
D 7489 5304 57 57 0.76% 1.07%

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 0 50 89866 799.73 545 534 111.7
A 14 249 30148 265.11 545 534 111.7
A 3 1 7881 65.77 545 534 111.7
B 0 230 458110 4240.26 557 543 107.9
B 15 204 349970 3238.13 557 543 107.9
B 2 249 28180 256.11 557 543 107.9
C 6 80 80596 647.46 532 534 123.7
C 1 16 11684 90.17 532 534 123.7
C 15 208 8462 64.11 532 534 123.7
D 13 114 247656 1971.38 526 513 125.4
D 7 80 205521 1635.28 526 513 125.4
D 10 213 134305 1067.21 526 513 125.4

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