ASTROSAT CZTI

Data Quality Report

Orbit 35046

Creation date: 2022-07-18T20:34:46.413720
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/AS1A10_053T44_9000005020_35046cztM0_level2.evt modeM0/AS1A10_053T44_9000005020_35046cztM0_level2_quad_clean.evt
Size (bytes)354,205,44072,555,840
Size337.8 MB 69.2 MB
Events in quadrant A1,977,457477,538
Events in quadrant B2,794,894485,658
Events in quadrant C2,247,405489,981
Events in quadrant D3,427,242453,877

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A085351
B0108971
C090371
D0130921

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0840
B0840
C0840
D0840

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A411680.194363%
B41162856.924198%
C4116360.874636%
D41161694.105928%

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 4116 4116 3 3 0.07% 0.07%
B 4116 4116 270 270 6.56% 6.56%
C 4116 4116 29 29 0.70% 0.70%
D 4116 4116 154 154 3.74% 3.74%

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 43770 440.7 492 483 98.2
A 7 16 9485 91.64 492 483 98.2
A 15 169 9181 88.55 492 483 98.2
B 5 200 831708 9234.21 476 463 90.0
B 5 172 50243 553.0 476 463 90.0
B 15 85 20354 220.97 476 463 90.0
C 15 214 168538 1484.95 491 495 113.2
C 0 10 100354 882.43 491 495 113.2
C 14 67 53520 468.57 491 495 113.2
D 8 195 1028353 8762.65 480 468 117.3
D 13 249 279371 2377.63 480 468 117.3
D 5 223 116095 985.71 480 468 117.3

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