ASTROSAT CZTI

Data Quality Report

Orbit 10014

Creation date: 2024-06-27T15:53:44.832683
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/AS1G07_022T02_9000001434_10014cztM0_level2.evt modeM0/AS1G07_022T02_9000001434_10014cztM0_level2_quad_clean.evt
Size (bytes)1,567,500,480300,496,320
Size1.5 GB 286.6 MB
Events in quadrant A10,362,9981,942,973
Events in quadrant B10,105,5291,983,094
Events in quadrant C9,355,8822,008,111
Events in quadrant D16,262,4781,755,557

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0493304810
B0482094373
C0468134185
D07567214018

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0492
B0492
C0491
D0492

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A046135
B046244
C046242
D046137

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A206093171.538163%
B207162961.428847%
C207601910.920039%
D1977414017.085061%

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 27546 21876 35 35 0.13% 0.16%
B 27546 21951 30 30 0.11% 0.14%
C 27546 21980 0 0 0.00% 0.00%
D 27546 21036 1287 1287 4.67% 6.12%

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 15 717138 1468.24 2430 2379 486.8
A 15 239 131734 265.72 2430 2379 486.8
A 15 174 123097 247.98 2430 2379 486.8
B 0 214 110414 233.6 2452 2393 462.4
B 4 81 82499 173.23 2452 2393 462.4
B 5 255 81447 170.96 2452 2393 462.4
C 13 61 17575 27.54 2391 2406 550.7
C 14 67 17096 26.67 2391 2406 550.7
C 9 221 8237 10.59 2391 2406 550.7
D 2 16 3034946 5532.94 2228 2177 548.1
D 8 195 1602214 2919.08 2228 2177 548.1
D 10 118 1464647 2668.11 2228 2177 548.1

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