ASTROSAT CZTI

Data Quality Report

Orbit 41013

Creation date: 2024-06-27T22:23:16.606438
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/AS1A12_029T02_9000005590_41013cztM0_level2.fits modeM0/AS1A12_029T02_9000005590_41013cztM0_level2_quad_clean.evt
Size (bytes)309,219,84084,816,000
Size294.9 MB 80.9 MB
Events in quadrant A2,635,220569,757
Events in quadrant B2,163,774583,508
Events in quadrant C2,693,369559,456
Events in quadrant D3,568,553509,027

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0109483
B099452
C0111392
D0140242

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0420
B0420
C0420
D0420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A494390.182076%
B494360.121384%
C4943841.699373%
D49431503.034594%

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 9130 4945 5 5 0.05% 0.10%
B 9130 4945 0 0 0.00% 0.00%
C 9130 4945 70 70 0.77% 1.42%
D 9130 4945 159 159 1.74% 3.22%

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 474206 4243.94 545 534 111.6
A 12 189 42311 374.31 545 534 111.6
A 13 254 7615 63.44 545 534 111.6
B 12 111 13442 120.97 545 530 106.7
B 0 190 12878 115.69 545 530 106.7
B 11 111 12295 110.23 545 530 106.7
C 15 214 214799 1682.43 540 544 127.3
C 14 254 202043 1582.27 540 544 127.3
C 0 10 127250 994.96 540 544 127.3
D 12 79 746798 5742.81 533 520 129.9
D 13 249 579913 4458.59 533 520 129.9
D 13 171 57004 434.66 533 520 129.9

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