ASTROSAT CZTI

Data Quality Report

Orbit 29667

Creation date: 2024-06-27T20:06:36.601621
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/AS1A10_097T02_9000004272_29667cztM0_level2.evt modeM0/AS1A10_097T02_9000004272_29667cztM0_level2_quad_clean.evt
Size (bytes)282,280,32052,231,680
Size269.2 MB 49.8 MB
Events in quadrant A1,863,701328,077
Events in quadrant B1,910,228333,432
Events in quadrant C1,961,113322,003
Events in quadrant D2,537,572312,589

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A081891
B082581
C084011
D0100662

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0820
B0820
C0820
D0820

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4048340.839921%
B4048390.963439%
C4048631.556324%
D4047922.273289%

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 4573 4048 0 0 0.00% 0.00%
B 4573 4048 0 0 0.00% 0.00%
C 4573 4048 5 5 0.11% 0.12%
D 4572 4047 44 44 0.96% 1.09%

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 13 8500 81.78 481 471 98.2
A 13 254 6986 66.36 481 471 98.2
A 3 137 4779 43.88 481 471 98.2
B 0 190 16039 167.44 475 462 93.0
B 0 189 13107 135.92 475 462 93.0
B 0 229 12272 126.95 475 462 93.0
C 14 238 75106 682.76 459 461 109.3
C 3 233 41082 371.55 459 461 109.3
C 10 22 30892 278.35 459 461 109.3
D 7 80 546505 4859.22 464 451 112.4
D 8 195 171047 1518.1 464 451 112.4
D 2 250 30706 269.23 464 451 112.4

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