ASTROSAT CZTI

Data Quality Report

Orbit 46269

Creation date: 2024-06-27T23:21:03.937489
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_071T10_9000006192_46269cztM0_level2.fits modeM0/AS1A13_071T10_9000006192_46269cztM0_level2_quad_clean.evt
Size (bytes)519,837,120112,757,760
Size495.8 MB 107.5 MB
Events in quadrant A6,100,764742,957
Events in quadrant B4,257,500787,442
Events in quadrant C3,051,972758,026
Events in quadrant D5,302,880650,436

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0223212
B0171972
C0140412
D0204322

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68322042.985948%
B68321031.507611%
C6832330.483021%
D68324496.572014%

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 7897 6833 7 7 0.09% 0.10%
B 7897 6833 25 25 0.32% 0.37%
C 7897 6833 6 6 0.08% 0.09%
D 7897 6833 376 376 4.76% 5.50%

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 3116504 19681.29 770 755 158.3
A 13 254 10213 59.74 770 755 158.3
A 3 137 8797 50.8 770 755 158.3
B 3 112 1028049 6802.9 768 743 151.0
B 5 32 129143 850.27 768 743 151.0
B 12 111 19198 122.21 768 743 151.0
C 12 2 77036 430.33 757 760 177.3
C 3 233 21766 118.51 757 760 177.3
C 13 61 5135 24.68 757 760 177.3
D 13 249 1099785 5957.59 735 710 184.5
D 1 52 913441 4947.5 735 710 184.5
D 13 171 192613 1040.22 735 710 184.5

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