ASTROSAT CZTI

Data Quality Report

Orbit 03092

Creation date: 2024-06-27T14:24:32.529499
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_237T03_9000000426_03092cztM0_level2.evt modeM0/AS1G05_237T03_9000000426_03092cztM0_level2_quad_clean.evt
Size (bytes)527,794,56091,823,040
Size503.3 MB 87.6 MB
Events in quadrant A3,281,460579,692
Events in quadrant B3,467,252582,802
Events in quadrant C3,643,537579,988
Events in quadrant D5,116,296549,991

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146053
B0151172
C0157572
D0202742

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7004470.671045%
B7004610.870931%
C70041331.898915%
D70045247.481439%

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 8699 7006 3 3 0.03% 0.04%
B 8699 7006 4 4 0.05% 0.06%
C 8699 7006 73 73 0.84% 1.04%
D 8699 7006 372 372 4.28% 5.31%

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 102345 614.73 804 788 165.2
A 12 247 55452 330.88 804 788 165.2
A 8 15 15522 89.19 804 788 165.2
B 15 204 134138 846.63 819 801 157.5
B 0 219 57015 356.93 819 801 157.5
B 2 249 28760 177.53 819 801 157.5
C 14 223 234430 1271.47 781 788 183.8
C 1 16 135668 734.01 781 788 183.8
C 1 192 91706 494.77 781 788 183.8
D 1 7 1226505 6532.39 755 732 187.6
D 1 193 483957 2575.2 755 732 187.6
D 2 136 269012 1429.72 755 732 187.6

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