ASTROSAT CZTI

Data Quality Report

Orbit 26483

Creation date: 2024-06-27T19:29:33.972931
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/AS1A09_104T02_9000003826_26483cztM0_level2.evt modeM0/AS1A09_104T02_9000003826_26483cztM0_level2_quad_clean.evt
Size (bytes)324,308,16039,473,280
Size309.3 MB 37.6 MB
Events in quadrant A1,874,991240,891
Events in quadrant B1,938,504244,992
Events in quadrant C1,953,560231,511
Events in quadrant D3,772,810186,057

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A082660
B083480
C083820
D0140150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A412320.048508%
B412440.096993%
C4124120.290980%
D412460114.573230%

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 4123 4123 0 0 0.00% 0.00%
B 4124 4124 2 2 0.05% 0.05%
C 4124 4124 1 1 0.02% 0.02%
D 4124 4124 518 518 12.56% 12.56%

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 13 254 6587 61.53 485 476 99.3
A 3 137 4691 42.44 485 476 99.3
A 0 226 4145 36.94 485 476 99.3
B 3 112 16609 171.01 482 469 94.4
B 0 190 12985 132.61 482 469 94.4
B 12 111 11387 115.68 482 469 94.4
C 14 238 74091 673.82 462 465 109.3
C 3 233 67756 615.84 462 465 109.3
C 0 207 4876 40.37 462 465 109.3
D 7 80 1718585 16502.29 430 419 104.1
D 1 52 280098 2686.2 430 419 104.1
D 11 176 122233 1169.97 430 419 104.1

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