ASTROSAT CZTI

Data Quality Report

Orbit 06242

Creation date: 2024-06-27T15:04:38.821623
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/AS1A02_151T01_9000000818_06242cztM0_level2.evt modeM0/AS1A02_151T01_9000000818_06242cztM0_level2_quad_clean.evt
Size (bytes)496,673,280100,152,000
Size473.7 MB 95.5 MB
Events in quadrant A3,787,869634,093
Events in quadrant B3,693,251641,669
Events in quadrant C3,252,178627,173
Events in quadrant D3,795,376604,715

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0166393
B0163322
C0154402
D0169722

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75411081.432171%
B75411051.392388%
C754170.092826%
D7541861.140432%

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 8661 7543 19 19 0.22% 0.25%
B 8661 7543 43 43 0.50% 0.57%
C 8661 7543 0 0 0.00% 0.00%
D 8661 7543 54 54 0.62% 0.72%

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 410901 2301.92 860 840 178.1
A 14 111 34164 187.07 860 840 178.1
A 8 15 11555 60.15 860 840 178.1
B 0 219 158812 940.87 871 850 167.9
B 3 64 107936 637.84 871 850 167.9
B 15 35 19739 112.51 871 850 167.9
C 13 61 6695 30.35 832 833 193.1
C 1 16 3394 13.26 832 833 193.1
C 8 222 2803 10.2 832 833 193.1
D 2 152 320128 1571.86 829 801 203.2
D 5 97 98673 481.77 829 801 203.2
D 2 63 97063 473.84 829 801 203.2

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