ASTROSAT CZTI

Data Quality Report

Orbit 10396

Creation date: 2024-06-27T15:59:04.777164
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/AS1G07_068T01_9000001502_10396cztM0_level2.evt modeM0/AS1G07_068T01_9000001502_10396cztM0_level2_quad_clean.evt
Size (bytes)529,470,72080,585,280
Size504.9 MB 76.9 MB
Events in quadrant A3,383,258485,211
Events in quadrant B4,120,658489,886
Events in quadrant C3,374,406492,400
Events in quadrant D4,662,835465,812

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150390
B0168570
C0151870
D0185260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72741812.488315%
B72722783.822882%
C72731472.021174%
D72742193.010723%

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 7585 7275 0 0 0.00% 0.00%
B 7585 7275 57 57 0.75% 0.78%
C 7585 7275 7 7 0.09% 0.10%
D 7585 7275 64 64 0.84% 0.88%

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 3 1 9170 46.59 870 848 178.6
A 1 162 8575 43.26 870 848 178.6
A 0 226 7851 39.21 870 848 178.6
B 4 239 420833 2513.15 866 845 167.1
B 0 219 92033 545.66 866 845 167.1
B 11 51 76892 455.05 866 845 167.1
C 14 234 61633 308.12 848 854 197.3
C 13 61 6446 28.35 848 854 197.3
C 14 67 3011 10.94 848 854 197.3
D 8 195 676985 3328.64 845 821 203.1
D 1 20 324454 1593.19 845 821 203.1
D 2 33 140269 686.48 845 821 203.1

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