ASTROSAT CZTI

Data Quality Report

Orbit 47560

Creation date: 2024-07-14T17:48:42.107230
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/AS1C09_002T01_9000006334_47560cztM0_level2.fits modeM0/AS1C09_002T01_9000006334_47560cztM0_level2_quad_clean.evt
Size (bytes)415,480,320100,969,920
Size396.2 MB 96.3 MB
Events in quadrant A6,315,408666,103
Events in quadrant B3,001,642690,295
Events in quadrant C2,598,063668,681
Events in quadrant D3,003,681617,446

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0233474
B0129581
C0121341
D0132091

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59342233.758005%
B5935861.449031%
C5935460.775063%
D5935781.314238%

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 7069 5934 45 45 0.64% 0.76%
B 7070 5935 27 27 0.38% 0.45%
C 7070 5935 4 4 0.06% 0.07%
D 7070 5935 35 35 0.50% 0.59%

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 3429846 24934.0 668 655 137.5
A 9 191 230049 1667.95 668 655 137.5
A 7 3 62268 447.99 668 655 137.5
B 0 190 105877 822.88 665 647 127.9
B 0 200 92584 718.93 665 647 127.9
B 5 255 78135 605.94 665 647 127.9
C 1 3 28383 181.5 657 659 152.7
C 14 254 5528 31.88 657 659 152.7
C 13 61 4402 24.5 657 659 152.7
D 2 165 138192 845.0 660 639 162.8
D 12 233 133959 819.0 660 639 162.8
D 4 222 52486 318.5 660 639 162.8

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