ASTROSAT CZTI

Data Quality Report

Orbit 32812

Creation date: 2024-06-27T20:42:17.826254
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/AS1A11_044T01_9000004732_32812cztM0_level2.evt modeM0/AS1A11_044T01_9000004732_32812cztM0_level2_quad_clean.evt
Size (bytes)487,739,520104,469,120
Size465.1 MB 99.6 MB
Events in quadrant A2,542,067714,584
Events in quadrant B3,153,629722,361
Events in quadrant C3,063,593700,554
Events in quadrant D5,646,900649,301

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0290

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110633
B0129762
C0126052
D0207072

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5382120.222965%
B53821592.954292%
C53821733.214418%
D53823807.060572%

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 7144 5383 3 3 0.04% 0.06%
B 7144 5383 96 96 1.34% 1.78%
C 7144 5383 142 142 1.99% 2.64%
D 7144 5383 324 324 4.54% 6.02%

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 14 238 37186 290.23 631 618 126.0
A 9 143 27220 211.13 631 618 126.0
A 15 17 13654 103.46 631 618 126.0
B 5 172 273936 2312.26 632 617 118.2
B 0 219 101202 850.94 632 617 118.2
B 5 200 85585 718.82 632 617 118.2
C 0 10 456246 3246.76 609 615 140.3
C 1 23 133119 944.2 609 615 140.3
C 3 233 22902 158.81 609 615 140.3
D 8 195 1848574 12032.61 596 583 153.6
D 2 250 371279 2413.67 596 583 153.6
D 12 6 222037 1441.93 596 583 153.6

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