ASTROSAT CZTI

Data Quality Report

Orbit 24292

Creation date: 2024-06-27T19:04:25.687894
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/AS1A07_047T08_9000003590_24292cztM0_level2.evt modeM0/AS1A07_047T08_9000003590_24292cztM0_level2_quad_clean.evt
Size (bytes)312,177,60069,238,080
Size297.7 MB 66.0 MB
Events in quadrant A1,619,094471,111
Events in quadrant B1,637,441477,567
Events in quadrant C2,671,312453,608
Events in quadrant D3,280,370438,738

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0720
B0720
C0720
D0720

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A072290
B072690
C0104410
D0122520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A361030.083102%
B361120.055386%
C3611471.301579%
D36111754.846303%

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 3610 3610 0 0 0.00% 0.00%
B 3611 3611 2 2 0.06% 0.06%
C 3611 3611 5 5 0.14% 0.14%
D 3611 3611 220 220 6.09% 6.09%

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 5711 62.34 419 411 85.0
A 0 226 3606 37.58 419 411 85.0
A 3 137 3596 37.46 419 411 85.0
B 12 111 9249 112.62 413 403 78.5
B 11 111 8056 97.43 413 403 78.5
B 5 172 7979 96.45 413 403 78.5
C 7 247 934798 10034.16 400 403 93.1
C 2 16 109612 1172.76 400 403 93.1
C 14 238 64818 691.73 400 403 93.1
D 1 52 935368 9563.88 405 393 97.8
D 8 195 471119 4815.06 405 393 97.8
D 12 218 204851 2091.4 405 393 97.8

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