ASTROSAT CZTI

Data Quality Report

Orbit 05948

Creation date: 2024-06-27T15:01:07.637362
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/AS1G06_157T01_9000000772_05948cztM0_level2.evt modeM0/AS1G06_157T01_9000000772_05948cztM0_level2_quad_clean.evt
Size (bytes)436,224,96097,528,320
Size416.0 MB 93.0 MB
Events in quadrant A3,398,478620,557
Events in quadrant B3,096,394647,568
Events in quadrant C2,954,823632,074
Events in quadrant D3,314,669595,153

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146383
B0136362
C0133542
D0144092

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6569580.882935%
B6569180.274014%
C656980.121784%
D6569140.213122%

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 7904 6570 30 30 0.38% 0.46%
B 7904 6570 2 2 0.03% 0.03%
C 7904 6570 0 0 0.00% 0.00%
D 7904 6570 7 7 0.09% 0.11%

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 4 2 405941 2644.26 757 741 153.2
A 8 192 28328 180.03 757 741 153.2
A 3 1 20968 132.0 757 741 153.2
B 15 255 30307 199.79 781 762 147.9
B 12 111 13854 88.53 781 762 147.9
B 15 204 12962 82.5 781 762 147.9
C 9 54 11119 59.58 752 756 173.9
C 1 16 6543 33.27 752 756 173.9
C 13 61 6181 31.19 752 756 173.9
D 1 20 368668 2048.62 737 714 179.6
D 2 63 135558 750.76 737 714 179.6
D 2 14 15706 83.47 737 714 179.6

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