ASTROSAT CZTI

Data Quality Report

Orbit 06416

Creation date: 2024-06-27T15:06:56.769735
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/AS1C02_011T01_9000000850_06416cztM0_level2.evt modeM0/AS1C02_011T01_9000000850_06416cztM0_level2_quad_clean.evt
Size (bytes)700,254,720100,195,200
Size667.8 MB 95.6 MB
Events in quadrant A3,938,228640,256
Events in quadrant B4,064,773651,680
Events in quadrant C3,789,024650,991
Events in quadrant D8,880,361541,529

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0168453
B0172072
C0167482
D0316492

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79012853.607138%
B79013053.860271%
C7901961.215036%
D7901173221.921276%

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 8391 7904 0 0 0.00% 0.00%
B 8391 7904 1 1 0.01% 0.01%
C 8391 7904 0 0 0.00% 0.00%
D 8391 7904 1549 1549 18.46% 19.60%

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 15 236 70894 341.59 992 969 204.7
A 8 15 38114 181.46 992 969 204.7
A 0 226 9602 42.17 992 969 204.7
B 15 204 115537 585.6 994 971 195.6
B 4 81 30097 148.88 994 971 195.6
B 12 111 20196 98.27 994 971 195.6
C 8 128 18597 78.56 961 967 224.4
C 8 112 8132 31.93 961 967 224.4
C 13 61 7522 29.21 961 967 224.4
D 13 105 5057310 22519.39 900 871 224.5
D 2 152 177219 785.38 900 871 224.5
D 11 241 60901 267.35 900 871 224.5

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