ASTROSAT CZTI

Data Quality Report

Orbit 30501

Creation date: 2024-06-27T20:16:06.802241
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/AS1A10_053T47_9000004386_30501cztM0_level2.evt modeM0/AS1A10_053T47_9000004386_30501cztM0_level2_quad_clean.evt
Size (bytes)571,677,12073,428,480
Size545.2 MB 70.0 MB
Events in quadrant A3,386,556456,322
Events in quadrant B5,428,154451,924
Events in quadrant C3,577,628430,660
Events in quadrant D4,477,271427,380

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139052
B0203433
C0143762
D0174992

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65511171.785987%
B65502013.068702%
C65502003.053435%
D65501462.229008%

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 7551 6552 5 5 0.07% 0.08%
B 7550 6551 19 19 0.25% 0.29%
C 7550 6551 41 41 0.54% 0.63%
D 7550 6551 67 67 0.89% 1.02%

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 8 192 27456 154.19 868 852 172.5
A 13 254 12493 67.47 868 852 172.5
A 3 137 8555 44.64 868 852 172.5
B 6 159 1863920 11528.75 853 833 161.6
B 0 229 186937 1151.61 853 833 161.6
B 12 111 19920 118.11 853 833 161.6
C 0 10 162605 854.4 812 819 189.4
C 14 238 133154 698.87 812 819 189.4
C 10 22 79201 413.94 812 819 189.4
D 12 227 771579 3928.97 832 814 196.2
D 8 195 380012 1932.96 832 814 196.2
D 2 250 60280 303.13 832 814 196.2

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