ASTROSAT CZTI

Data Quality Report

Orbit 11067

Creation date: 2024-06-27T16:07:48.966745
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_053T04_9000001614_11067cztM0_level2.evt modeM0/AS1A04_053T04_9000001614_11067cztM0_level2_quad_clean.evt
Size (bytes)194,935,68045,501,120
Size185.9 MB 43.4 MB
Events in quadrant A1,415,595301,052
Events in quadrant B1,719,213299,908
Events in quadrant C1,112,816295,708
Events in quadrant D1,466,906284,232

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0540
B0540
C0540
D0540

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A064321
B070661
C055381
D064061

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A275350.181620%
B2753953.450781%
C275330.108972%
D2753120.435888%

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 2753 2753 0 0 0.00% 0.00%
B 2753 2753 52 52 1.89% 1.89%
C 2753 2753 0 0 0.00% 0.00%
D 2753 2753 16 16 0.58% 0.58%

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 270305 4322.01 296 290 62.5
A 11 29 4543 68.08 296 290 62.5
A 0 226 2642 37.65 296 290 62.5
B 4 239 496979 8443.05 296 289 58.8
B 3 189 26235 441.05 296 289 58.8
B 15 204 18306 306.26 296 289 58.8
C 13 61 2131 27.35 285 287 67.4
C 8 222 799 7.59 285 287 67.4
C 7 159 702 6.16 285 287 67.4
D 11 129 133614 1944.95 281 274 68.6
D 1 52 122832 1787.68 281 274 68.6
D 13 249 48705 706.43 281 274 68.6

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