ASTROSAT CZTI

Data Quality Report

Orbit 20240524_A13_068T13_9000006268_level2

Creation date: 2024-05-25T09:17:06.703609
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/AS1A13_068T13_9000006268cztM0_level2.fits modeM0/AS1A13_068T13_9000006268cztM0_level2_quad_clean.evt
Size (bytes)327,251,520400,559,040
Size312.1 MB 382.0 MB
Events in quadrant A1,863,6282,427,628
Events in quadrant B1,868,2232,520,254
Events in quadrant C1,926,3322,415,122
Events in quadrant D1,620,3472,138,187

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01307690
B0815520
C0806180
D01046930

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07750
B07740
C07760
D07760

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3808811763.087587%
B383237261.894424%
C383914721.229455%
D3829921155.522337%

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 41435 38460 0 0 0.00% 0.00%
B 41435 38687 0 0 0.00% 0.00%
C 41435 38741 0 0 0.00% 0.00%
D 41435 38598 0 0 0.00% 0.00%

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 7 110 1524 8.35 486 454 128.1
A 14 95 1444 7.73 486 454 128.1
A 0 29 1415 7.5 486 454 128.1
B 2 9 1753 13.22 491 467 97.3
B 2 8 1465 10.26 491 467 97.3
B 3 17 1373 9.31 491 467 97.3
C 1 81 1552 8.04 509 472 134.2
C 3 202 1529 7.87 509 472 134.2
C 1 80 1491 7.59 509 472 134.2
D 3 14 1232 6.19 464 419 131.3
D 10 189 1204 5.98 464 419 131.3
D 3 159 1166 5.69 464 419 131.3

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