ASTROSAT CZTI

Data Quality Report

Orbit 23330

Creation date: 2024-06-27T18:52:53.985000
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_148T05_9000003446_23330cztM0_level2.evt modeM0/AS1A07_148T05_9000003446_23330cztM0_level2_quad_clean.evt
Size (bytes)2,885,886,720471,651,840
Size2.7 GB 449.8 MB
Events in quadrant A17,899,6582,993,149
Events in quadrant B18,109,1053,042,445
Events in quadrant C19,837,7392,912,252
Events in quadrant D29,053,3502,791,690

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0772897
B0774807
C0823427
D01117308

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07520
B07520
C07520
D07520

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0410
B0410
C0410
D0410

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A370722900.782262%
B370723871.043915%
C370727331.977233%
D3707235279.513919%

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 45147 37076 26 26 0.06% 0.07%
B 45147 37076 20 20 0.04% 0.05%
C 45147 37075 162 162 0.36% 0.44%
D 45147 37077 3031 3031 6.71% 8.17%

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 6 16 295051 319.17 4557 4464 910.4
A 13 254 56939 57.64 4557 4464 910.4
A 2 79 44703 44.2 4557 4464 910.4
B 0 229 169285 192.42 4521 4408 856.9
B 0 190 113175 126.94 4521 4408 856.9
B 12 111 106601 119.27 4521 4408 856.9
C 10 9 1617326 1588.25 4348 4374 1015.6
C 14 238 687979 673.13 4348 4374 1015.6
C 0 207 287162 278.46 4348 4374 1015.6
D 1 52 8718276 8310.08 4278 4154 1048.6
D 7 238 1940584 1846.64 4278 4154 1048.6
D 7 223 996668 946.49 4278 4154 1048.6

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