ASTROSAT CZTI

Data Quality Report

Orbit 22619

Creation date: 2024-06-27T18:43:39.106049
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_049T01_9000003358_22619cztM0_level2.evt modeM0/AS1A07_049T01_9000003358_22619cztM0_level2_quad_clean.evt
Size (bytes)407,810,88089,979,840
Size388.9 MB 85.8 MB
Events in quadrant A2,930,972588,248
Events in quadrant B2,983,279595,197
Events in quadrant C2,987,110561,251
Events in quadrant D3,035,899555,972

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126631
B0128001
C0128391
D0130061

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6080410.674342%
B6081500.822233%
C6080590.970395%
D6080500.822368%

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 7125 6081 0 0 0.00% 0.00%
B 7126 6082 0 0 0.00% 0.00%
C 7125 6081 0 0 0.00% 0.00%
D 7125 6081 31 31 0.44% 0.51%

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 13 254 8333 49.76 760 744 152.5
A 0 226 6531 37.95 760 744 152.5
A 3 137 6469 37.54 760 744 152.5
B 0 230 18555 122.75 750 731 145.2
B 12 111 17452 115.15 750 731 145.2
B 11 111 15464 101.46 750 731 145.2
C 14 238 113695 666.59 716 720 169.5
C 10 222 50730 295.08 716 720 169.5
C 10 22 21126 120.4 716 720 169.5
D 13 249 114820 642.58 732 710 177.6
D 1 52 96616 540.07 732 710 177.6
D 1 239 26921 147.6 732 710 177.6

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