ASTROSAT CZTI

Data Quality Report

Orbit 42593

Creation date: 2024-06-27T22:41:58.064291
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/AS1A12_061T07_9000005818_42593cztM0_level2.fits modeM0/AS1A12_061T07_9000005818_42593cztM0_level2_quad_clean.evt
Size (bytes)300,746,88088,176,960
Size286.8 MB 84.1 MB
Events in quadrant A2,829,076585,407
Events in quadrant B2,410,143600,626
Events in quadrant C2,456,536582,104
Events in quadrant D3,019,914527,302

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114671
B0109921
C0107261
D0127541

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5345130.243218%
B5346170.317995%
C534610.018706%
D53461132.113730%

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 7227 5346 4 4 0.06% 0.07%
B 7228 5347 7 7 0.10% 0.13%
C 7228 5347 0 0 0.00% 0.00%
D 7228 5347 101 101 1.40% 1.89%

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 10 83 512677 4234.5 585 570 120.9
A 13 248 48519 396.48 585 570 120.9
A 3 137 6509 49.11 585 570 120.9
B 5 172 51441 445.84 578 562 114.1
B 0 245 37951 327.63 578 562 114.1
B 15 32 19275 163.98 578 562 114.1
C 15 214 223370 1678.57 569 572 132.7
C 0 207 5905 40.18 569 572 132.7
C 13 61 3682 23.43 569 572 132.7
D 1 52 393327 2811.38 572 558 139.7
D 2 16 148006 1055.41 572 558 139.7
D 12 233 85795 610.11 572 558 139.7

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