ASTROSAT CZTI

Data Quality Report

Orbit 23349

Creation date: 2024-06-27T18:53:06.713363
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_135T02_9000003450_23349cztM0_level2.evt modeM0/AS1A07_135T02_9000003450_23349cztM0_level2_quad_clean.evt
Size (bytes)236,554,56033,016,320
Size225.6 MB 31.5 MB
Events in quadrant A1,675,043193,567
Events in quadrant B1,717,471197,925
Events in quadrant C1,720,215193,018
Events in quadrant D1,832,102187,191

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A031
B020
C020
D031

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07327621
B07483645
C07472599
D07953702

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0706
B0695
C0673
D0673

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3199200.625195%
B3204270.842697%
C3201320.999688%
D3201431.343330%

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 7165 3226 0 0 0.00% 0.00%
B 7168 3233 6 6 0.08% 0.19%
C 7167 3229 0 0 0.00% 0.00%
D 7167 3228 26 26 0.36% 0.81%

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 15 174 18135 205.4 429 422 86.2
A 13 254 4722 49.86 429 422 86.2
A 0 226 3694 37.94 429 422 86.2
B 0 245 16914 203.09 423 413 81.3
B 0 190 15549 186.29 423 413 81.3
B 5 172 9926 117.08 423 413 81.3
C 14 238 66886 691.17 414 419 96.2
C 7 247 11746 117.79 414 419 96.2
C 2 16 10771 107.65 414 419 96.2
D 13 104 61368 582.95 422 408 104.6
D 1 52 54930 521.39 422 408 104.6
D 13 249 44311 419.84 422 408 104.6

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