ASTROSAT CZTI

Data Quality Report

Orbit 16957

Creation date: 2024-06-27T17:30:02.015182
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/AS1A05_188T01_9000002520_16957cztM0_level2.evt modeM0/AS1A05_188T01_9000002520_16957cztM0_level2_quad_clean.evt
Size (bytes)340,773,12054,783,360
Size325.0 MB 52.2 MB
Events in quadrant A1,951,412349,269
Events in quadrant B2,670,115350,734
Events in quadrant C2,327,532339,111
Events in quadrant D3,086,449324,935

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A085241
B0106312
C093891
D0119771

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0860
B0860
C0860
D0860

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4178360.861656%
B41772516.009097%
C4177611.460378%
D41772505.985157%

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 4899 4180 0 0 0.00% 0.00%
B 4898 4179 124 124 2.53% 2.97%
C 4898 4179 0 0 0.00% 0.00%
D 4898 4179 176 176 3.59% 4.21%

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 12 189 5625 49.09 506 493 104.5
A 0 226 4385 37.23 506 493 104.5
A 12 194 3844 32.06 506 493 104.5
B 3 64 552692 5729.43 496 483 96.4
B 15 35 105061 1085.05 496 483 96.4
B 0 229 16753 168.81 496 483 96.4
C 3 233 347876 3013.99 486 488 115.3
C 14 238 74079 638.49 486 488 115.3
C 0 207 4767 37.13 486 488 115.3
D 1 52 1185943 10017.71 485 471 118.3
D 2 234 18489 152.26 485 471 118.3
D 12 33 10918 88.28 485 471 118.3

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