ASTROSAT CZTI

Data Quality Report

Orbit 43320

Creation date: 2024-06-27T22:50:36.452589
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/AS1A12_088T25_9000005866_43320cztM0_level2.fits modeM0/AS1A12_088T25_9000005866_43320cztM0_level2_quad_clean.evt
Size (bytes)366,085,44099,449,280
Size349.1 MB 94.8 MB
Events in quadrant A3,762,211663,742
Events in quadrant B3,024,576685,992
Events in quadrant C2,899,276653,782
Events in quadrant D3,401,058590,910

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147434
B0128562
C0121682
D0142782

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59651191.994971%
B5965180.301760%
C596580.134116%
D59651582.648785%

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 7277 5966 88 88 1.21% 1.48%
B 7277 5966 3 3 0.04% 0.05%
C 7277 5966 2 2 0.03% 0.03%
D 7277 5966 139 139 1.91% 2.33%

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 10 83 685707 4893.2 661 644 140.0
A 15 237 425962 3037.92 661 644 140.0
A 12 189 72123 510.55 661 644 140.0
B 0 190 154035 1150.09 664 645 133.4
B 0 186 115740 862.96 664 645 133.4
B 0 245 47468 351.07 664 645 133.4
C 15 214 250372 1614.26 647 649 154.7
C 3 233 102525 658.55 647 649 154.7
C 12 2 11768 71.88 647 649 154.7
D 10 118 229108 1410.08 643 623 162.0
D 2 249 198292 1219.9 643 623 162.0
D 12 6 166556 1024.05 643 623 162.0

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