ASTROSAT CZTI

Data Quality Report

Orbit 32269

Creation date: 2024-06-27T20:38:16.897783
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/AS1A09_131T01_9000004696_32269cztM0_level2.evt modeM0/AS1A09_131T01_9000004696_32269cztM0_level2_quad_clean.evt
Size (bytes)715,775,040105,206,400
Size682.6 MB 100.3 MB
Events in quadrant A3,072,388701,724
Events in quadrant B5,149,932704,295
Events in quadrant C3,877,240697,388
Events in quadrant D9,135,809625,444

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135553
B0202722
C0158842
D0317482

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65451221.864018%
B65452664.064171%
C65451692.582124%
D6545147022.459893%

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 6810 6547 0 0 0.00% 0.00%
B 6810 6547 36 36 0.53% 0.55%
C 6810 6547 0 0 0.00% 0.00%
D 6810 6547 1991 1991 29.24% 30.41%

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 14 238 32877 202.89 783 764 158.3
A 13 254 12910 76.74 783 764 158.3
A 13 6 12349 73.19 783 764 158.3
B 6 159 1840510 12292.95 773 752 149.7
B 5 172 157702 1048.71 773 752 149.7
B 0 229 39373 258.06 773 752 149.7
C 3 233 755696 4309.23 753 756 175.2
C 14 238 129148 732.87 753 756 175.2
C 0 10 22347 123.24 753 756 175.2
D 1 52 4534556 25736.28 730 707 176.2
D 8 195 1317440 7474.4 730 707 176.2
D 2 250 135958 767.75 730 707 176.2

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