ASTROSAT CZTI

Data Quality Report

Orbit 07020

Creation date: 2024-06-27T15:14:32.439453
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/AS1G06_026T01_9000000962_07020cztM0_level2.evt modeM0/AS1G06_026T01_9000000962_07020cztM0_level2_quad_clean.evt
Size (bytes)396,872,64074,681,280
Size378.5 MB 71.2 MB
Events in quadrant A2,813,399467,837
Events in quadrant B2,981,493473,414
Events in quadrant C2,778,355466,515
Events in quadrant D3,047,091443,845

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120412
B0123931
C0120171
D0124891

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5868861.465576%
B5868871.482618%
C5868721.226994%
D5868911.550784%

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 7138 5869 0 0 0.00% 0.00%
B 7138 5869 7 7 0.10% 0.12%
C 7138 5869 0 0 0.00% 0.00%
D 7138 5869 11 11 0.15% 0.19%

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 0 226 7203 44.7 727 714 145.2
A 12 194 6715 41.34 727 714 145.2
A 4 2 6419 39.3 727 714 145.2
B 0 214 54885 398.45 727 712 136.0
B 4 173 47313 342.76 727 712 136.0
B 4 81 20064 142.34 727 712 136.0
C 13 61 5496 29.31 711 715 163.1
C 10 22 3094 14.59 711 715 163.1
C 3 202 1781 6.53 711 715 163.1
D 8 195 141400 816.31 710 686 172.4
D 1 239 82820 476.48 710 686 172.4
D 12 221 53156 304.39 710 686 172.4

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