ASTROSAT CZTI

Data Quality Report

Orbit 13423

Creation date: 2024-06-27T16:40:35.150102
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/AS1A04_103T01_9000001988_13423cztM0_level2.evt modeM0/AS1A04_103T01_9000001988_13423cztM0_level2_quad_clean.evt
Size (bytes)686,197,440104,483,520
Size654.4 MB 99.6 MB
Events in quadrant A3,521,266676,402
Events in quadrant B3,655,191696,109
Events in quadrant C3,542,298674,156
Events in quadrant D9,540,460580,637

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0158723
B0161162
C0158252
D0337792

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7705190.246593%
B7705510.661908%
C7705260.337443%
D7705201226.112914%

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 8366 7707 2 2 0.02% 0.03%
B 8366 7707 7 7 0.08% 0.09%
C 8366 7708 0 0 0.00% 0.00%
D 8366 7707 2029 2029 24.25% 26.33%

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 15 69 20775 107.28 899 880 185.5
A 8 15 20052 103.38 899 880 185.5
A 1 162 17442 89.31 899 880 185.5
B 4 142 52196 293.98 907 882 174.5
B 12 111 21047 115.52 907 882 174.5
B 11 111 17423 94.76 907 882 174.5
C 3 233 45379 217.1 881 885 205.0
C 14 220 37208 177.23 881 885 205.0
C 8 128 12899 58.62 881 885 205.0
D 13 249 5194517 27254.89 794 771 190.6
D 1 52 986058 5170.43 794 771 190.6
D 2 136 227095 1187.67 794 771 190.6

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