ASTROSAT CZTI

Data Quality Report

Orbit 23599

Creation date: 2024-06-27T18:56:39.325573
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/AS1A07_054T01_9000003486_23599cztM0_level2.evt modeM0/AS1A07_054T01_9000003486_23599cztM0_level2_quad_clean.evt
Size (bytes)492,045,120129,591,360
Size469.3 MB 123.6 MB
Events in quadrant A3,234,052888,318
Events in quadrant B4,033,548879,752
Events in quadrant C3,254,488841,109
Events in quadrant D3,900,390824,558

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143731
B0164091
C0143651
D0163081

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7052741.049348%
B70522112.992059%
C70521021.446398%
D70531031.460371%

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 7327 7053 0 0 0.00% 0.00%
B 7327 7053 110 110 1.50% 1.56%
C 7327 7052 0 0 0.00% 0.00%
D 7328 7053 40 40 0.55% 0.57%

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 6 16 20630 117.32 833 813 168.9
A 13 254 12471 69.02 833 813 168.9
A 3 137 7347 38.68 833 813 168.9
B 3 64 556919 3563.91 818 795 156.0
B 0 189 113303 721.01 818 795 156.0
B 0 230 31043 193.84 818 795 156.0
C 14 238 127287 687.0 790 791 184.1
C 7 247 20589 107.52 790 791 184.1
C 0 10 11258 56.85 790 791 184.1
D 1 52 300701 1545.8 801 776 194.0
D 9 85 260725 1339.76 801 776 194.0
D 12 233 213865 1098.25 801 776 194.0

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