ASTROSAT CZTI

Data Quality Report

Orbit 48419

Creation date: 2024-09-10T17:10:39.664540
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/AS1A13_029T01_9000006426_48419cztM0_level2.fits modeM0/AS1A13_029T01_9000006426_48419cztM0_level2_quad_clean.evt
Size (bytes)468,296,640109,088,640
Size446.6 MB 104.0 MB
Events in quadrant A7,078,917721,441
Events in quadrant B3,611,644731,297
Events in quadrant C2,939,708726,959
Events in quadrant D3,190,776661,775

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0266152
B0152791
C0135481
D0142261

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66182573.883348%
B66183024.563312%
C6619390.589213%
D6619761.148210%

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 7698 6619 45 45 0.58% 0.68%
B 7698 6619 192 192 2.49% 2.90%
C 7699 6620 0 0 0.00% 0.00%
D 7699 6620 18 18 0.23% 0.27%

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 4005916 25786.76 746 731 155.3
A 13 248 178853 1146.81 746 731 155.3
A 13 254 13789 84.07 746 731 155.3
B 12 16 632959 4361.57 734 713 145.0
B 5 171 48298 328.27 734 713 145.0
B 0 197 18524 122.87 734 713 145.0
C 14 254 22757 125.56 739 745 175.3
C 15 208 19836 108.89 739 745 175.3
C 9 160 9143 47.9 739 745 175.3
D 10 199 89633 474.25 745 723 187.5
D 5 32 78663 415.74 745 723 187.5
D 12 2 59510 313.57 745 723 187.5

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