ASTROSAT CZTI

Data Quality Report

Orbit 32405

Creation date: 2024-06-27T20:39:50.889388
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/AS1T04_059T01_9000004704_32405cztM0_level2.evt modeM0/AS1T04_059T01_9000004704_32405cztM0_level2_quad_clean.evt
Size (bytes)598,754,88085,354,560
Size571.0 MB 81.4 MB
Events in quadrant A2,922,562587,907
Events in quadrant B5,796,112552,964
Events in quadrant C5,161,725478,064
Events in quadrant D3,852,039551,352

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126392
B0211821
C0192591
D0153631

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5918611.030754%
B59183756.336600%
C5918115819.567421%
D59181622.737411%

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 6923 5919 8 8 0.12% 0.14%
B 6923 5919 230 230 3.32% 3.89%
C 6923 5919 704 704 10.17% 11.89%
D 6923 5919 109 109 1.57% 1.84%

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 15 174 70297 474.64 734 722 146.6
A 13 254 11478 73.38 734 722 146.6
A 7 16 7796 48.26 734 722 146.6
B 6 159 1574548 11773.59 701 683 133.7
B 5 172 746070 5576.0 701 683 133.7
B 4 80 613080 4581.15 701 683 133.7
C 3 233 2510062 17468.48 611 614 143.7
C 14 238 133723 926.58 611 614 143.7
C 14 254 53990 371.55 611 614 143.7
D 1 47 360700 2155.53 702 686 167.0
D 8 195 221315 1320.98 702 686 167.0
D 12 233 188604 1125.13 702 686 167.0

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