ASTROSAT CZTI

Data Quality Report

Orbit 24413

Creation date: 2024-06-27T19:05:45.967720
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_001T03_9000003602_24413cztM0_level2.evt modeM0/AS1A07_001T03_9000003602_24413cztM0_level2_quad_clean.evt
Size (bytes)345,551,04077,785,920
Size329.5 MB 74.2 MB
Events in quadrant A2,365,386507,014
Events in quadrant B2,427,557512,770
Events in quadrant C2,377,240492,611
Events in quadrant D2,941,449479,879

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0104791
B0105741
C0105221
D0120961

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5183380.733166%
B5183460.887517%
C5183711.369863%
D5183701.350569%

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 5903 5184 0 0 0.00% 0.00%
B 5903 5184 1 1 0.02% 0.02%
C 5903 5184 0 0 0.00% 0.00%
D 5903 5184 40 40 0.68% 0.77%

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 8762 65.97 613 600 123.7
A 3 137 5470 39.36 613 600 123.7
A 0 226 5321 38.16 613 600 123.7
B 0 190 21257 175.18 610 594 118.0
B 12 111 14379 116.87 610 594 118.0
B 11 111 12392 100.02 610 594 118.0
C 14 238 93305 682.74 583 587 135.8
C 7 247 7340 49.73 583 587 135.8
C 13 61 4109 25.93 583 587 135.8
D 1 52 567679 3844.63 593 573 147.5
D 8 195 52192 349.94 593 573 147.5
D 7 238 31509 209.73 593 573 147.5

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