ASTROSAT CZTI

Data Quality Report

Orbit 12322

Creation date: 2024-06-27T16:25:27.590313
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/AS1A04_048T01_9000001820_12322cztM0_level2.evt modeM0/AS1A04_048T01_9000001820_12322cztM0_level2_quad_clean.evt
Size (bytes)589,458,24073,725,120
Size562.2 MB 70.3 MB
Events in quadrant A5,547,445437,953
Events in quadrant B4,570,722443,807
Events in quadrant C3,287,762447,878
Events in quadrant D3,968,055411,417

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0213042
B0181061
C0147661
D0166611

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70523474.920590%
B70525037.132728%
C7052951.347136%
D70523645.161656%

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 7298 7054 17 17 0.23% 0.24%
B 7298 7054 206 206 2.82% 2.92%
C 7298 7054 5 5 0.07% 0.07%
D 7298 7054 58 58 0.79% 0.82%

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 810722 4717.94 834 817 171.7
A 0 23 335194 1947.85 834 817 171.7
A 1 162 307197 1784.75 834 817 171.7
B 4 239 975928 6143.27 821 799 158.7
B 15 36 82458 514.45 821 799 158.7
B 0 85 81887 510.85 821 799 158.7
C 0 207 33674 172.67 818 821 190.3
C 1 16 23556 119.49 818 821 190.3
C 4 254 21704 109.76 818 821 190.3
D 10 253 139401 704.35 804 781 196.8
D 13 104 119866 605.09 804 781 196.8
D 13 44 86651 436.32 804 781 196.8

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