ASTROSAT CZTI

Data Quality Report

Orbit 44302

Creation date: 2024-06-27T23:01:50.060423
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_004T13_9000005988_44302cztM0_level2.fits modeM0/AS1A13_004T13_9000005988_44302cztM0_level2_quad_clean.evt
Size (bytes)507,974,400110,759,040
Size484.4 MB 105.6 MB
Events in quadrant A4,948,162757,798
Events in quadrant B4,357,992746,923
Events in quadrant C3,143,256749,598
Events in quadrant D5,830,393629,489

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200821
B0174881
C0141831
D0219421

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67431932.862227%
B67434416.540116%
C6743841.245736%
D674379911.849325%

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 7758 6744 14 14 0.18% 0.21%
B 7758 6744 246 246 3.17% 3.65%
C 7758 6743 9 9 0.12% 0.13%
D 7758 6743 588 588 7.58% 8.72%

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 10 83 1787698 10981.84 781 764 162.7
A 10 248 43364 261.8 781 764 162.7
A 0 243 37332 224.73 781 764 162.7
B 5 172 400983 2675.57 756 732 149.6
B 10 245 339354 2263.59 756 732 149.6
B 0 219 166776 1109.96 756 732 149.6
C 14 254 104548 572.3 769 770 181.3
C 1 3 18596 98.3 769 770 181.3
C 3 233 13863 72.2 769 770 181.3
D 13 249 1319715 7204.69 738 716 183.1
D 2 153 248987 1356.11 738 716 183.1
D 13 171 240514 1309.83 738 716 183.1

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