ASTROSAT CZTI

Data Quality Report

Orbit 13390

Creation date: 2024-06-27T16:40:04.724451
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_103T01_9000001988_13390cztM0_level2.evt modeM0/AS1A04_103T01_9000001988_13390cztM0_level2_quad_clean.evt
Size (bytes)488,540,160105,713,280
Size465.9 MB 100.8 MB
Events in quadrant A3,348,691690,922
Events in quadrant B3,559,268714,143
Events in quadrant C3,685,751679,644
Events in quadrant D3,740,009643,043

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144213
B0149362
C0153732
D0158552

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6801731.073372%
B68011231.808558%
C6801620.911631%
D6801911.338039%

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 9387 6804 0 0 0.00% 0.00%
B 9387 6804 17 17 0.18% 0.25%
C 9387 6804 19 19 0.20% 0.28%
D 9387 6804 36 36 0.38% 0.53%

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 1 162 18537 102.2 859 839 173.2
A 0 226 7674 39.47 859 839 173.2
A 1 178 7057 35.91 859 839 173.2
B 3 64 88557 535.96 866 845 163.7
B 4 80 26659 157.74 866 845 163.7
B 10 245 26600 157.37 866 845 163.7
C 14 220 334029 1740.45 833 838 191.4
C 3 233 101397 525.28 833 838 191.4
C 13 61 6104 27.51 833 838 191.4
D 1 52 578804 2973.92 818 796 194.4
D 2 136 25887 129.1 818 796 194.4
D 2 234 24613 122.54 818 796 194.4

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