ASTROSAT CZTI

Data Quality Report

Orbit 17910

Creation date: 2024-06-27T17:42:31.594544
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/AS1A05_096T06_9000002668_17910cztM0_level2.evt modeM0/AS1A05_096T06_9000002668_17910cztM0_level2_quad_clean.evt
Size (bytes)663,624,000139,374,720
Size632.9 MB 132.9 MB
Events in quadrant A3,739,643970,176
Events in quadrant B4,219,354993,850
Events in quadrant C3,696,877941,901
Events in quadrant D7,903,143762,384

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0166712
B0178852
C0163962
D0290102

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79441662.089627%
B79453264.103210%
C79452252.831970%
D7945185323.322845%

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 8514 7946 4 4 0.05% 0.05%
B 8515 7947 74 74 0.87% 0.93%
C 8515 7947 0 0 0.00% 0.00%
D 8515 7946 1305 1305 15.33% 16.42%

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 15 174 111393 580.43 937 915 190.3
A 13 210 8312 38.86 937 915 190.3
A 0 226 8078 37.63 937 915 190.3
B 15 222 400664 2218.81 943 916 180.2
B 0 189 50296 274.08 943 916 180.2
B 7 220 22817 121.56 943 916 180.2
C 14 238 142612 667.34 908 912 212.3
C 13 61 6635 26.95 908 912 212.3
C 3 233 5399 21.13 908 912 212.3
D 7 238 4129459 22147.69 767 740 186.4
D 2 165 344820 1845.75 767 740 186.4
D 5 222 276297 1478.17 767 740 186.4

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