ASTROSAT CZTI

Data Quality Report

Orbit 14353

Creation date: 2024-06-27T16:53:53.290137
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/AS1A04_048T01_9000002114_14353cztM0_level2.evt modeM0/AS1A04_048T01_9000002114_14353cztM0_level2_quad_clean.evt
Size (bytes)307,224,00047,113,920
Size293.0 MB 44.9 MB
Events in quadrant A1,875,756292,992
Events in quadrant B2,431,219293,913
Events in quadrant C2,251,992285,629
Events in quadrant D2,476,056275,194

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0820
B0820
C0820
D0820

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080342
B096481
C091961
D099101

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3942110.279046%
B39421433.627600%
C394290.228311%
D3942481.217656%

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 4948 3944 0 0 0.00% 0.00%
B 4948 3943 100 100 2.02% 2.54%
C 4948 3944 2 2 0.04% 0.05%
D 4948 3944 41 41 0.83% 1.04%

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 10162 96.31 483 473 100.6
A 8 15 5597 50.93 483 473 100.6
A 0 226 4202 37.07 483 473 100.6
B 10 16 394947 4233.41 478 465 93.2
B 0 229 95956 1024.77 478 465 93.2
B 0 245 20999 220.36 478 465 93.2
C 3 233 423698 3859.41 466 466 109.7
C 14 234 4133 33.44 466 466 109.7
C 13 61 3304 25.88 466 466 109.7
D 12 110 225049 2014.24 464 450 111.5
D 5 222 224389 2008.33 464 450 111.5
D 13 122 84811 756.56 464 450 111.5

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