ASTROSAT CZTI

Data Quality Report

Orbit 03714

Creation date: 2024-06-27T14:32:45.195343
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/AS1G05_182T01_9000000484_03714cztM0_level2.evt modeM0/AS1G05_182T01_9000000484_03714cztM0_level2_quad_clean.evt
Size (bytes)1,733,273,280125,544,960
Size1.6 GB 119.7 MB
Events in quadrant A8,748,477791,114
Events in quadrant B7,222,004824,515
Events in quadrant C29,357,917473,868
Events in quadrant D6,271,836794,013

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02720
B02720
C02720
D02720

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0349084
B0303673
C0962813
D0284283

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1323610457.895134%
B132361341.012390%
C132361078881.504986%
D13236940.710184%

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 15446 13239 946 946 6.12% 7.15%
B 15446 13239 24 24 0.16% 0.18%
C 15446 13236 9457 9457 61.23% 71.45%
D 15446 13239 47 47 0.30% 0.36%

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 13 251 2126948 7077.65 1454 1423 300.3
A 0 50 636791 2115.67 1454 1423 300.3
A 8 15 287104 951.27 1454 1423 300.3
B 15 204 690543 2318.72 1540 1506 297.2
B 14 167 287470 962.31 1540 1506 297.2
B 5 70 109068 361.96 1540 1506 297.2
C 2 53 25382221 107730.68 1003 1006 235.6
C 1 16 13041 51.08 1003 1006 235.6
C 9 144 12924 50.59 1003 1006 235.6
D 13 239 254563 710.95 1472 1427 356.1
D 14 34 84082 232.14 1472 1427 356.1
D 2 37 71432 196.61 1472 1427 356.1

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
Veto Counter