ASTROSAT CZTI

Data Quality Report

Orbit 34186

Creation date: 2024-06-27T20:57:33.119565
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/AS1A11_047T15_9000004882_34186cztM0_level2.evt modeM0/AS1A11_047T15_9000004882_34186cztM0_level2_quad_clean.evt
Size (bytes)523,552,32059,716,800
Size499.3 MB 57.0 MB
Events in quadrant A2,618,800364,123
Events in quadrant B5,139,119358,401
Events in quadrant C3,141,589364,673
Events in quadrant D4,588,023340,063

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0112953
B0189922
C0126682
D0175102

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A544190.165411%
B544156110.310605%
C5441991.819518%
D54411282.352509%

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 7143 5442 1 1 0.01% 0.02%
B 7143 5442 363 363 5.08% 6.67%
C 7143 5442 61 61 0.85% 1.12%
D 7143 5442 84 84 1.18% 1.54%

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 15 169 28042 207.03 660 647 132.3
A 10 83 23733 174.47 660 647 132.3
A 13 6 11956 85.47 660 647 132.3
B 5 172 1195751 9965.97 625 610 119.9
B 5 31 985038 8208.89 625 610 119.9
B 5 15 270094 2247.16 625 610 119.9
C 0 10 291232 1940.62 643 649 149.7
C 15 214 248265 1653.67 643 649 149.7
C 14 254 58860 388.75 643 649 149.7
D 8 195 1063299 6702.45 640 624 158.6
D 7 223 523333 3296.8 640 624 158.6
D 2 249 268773 1691.26 640 624 158.6

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