ASTROSAT CZTI

Data Quality Report

Orbit 39071

Creation date: 2024-06-27T22:00:02.795080
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/AS1T05_067T01_9000005432_39071cztM0_level2.fits modeM0/AS1T05_067T01_9000005432_39071cztM0_level2_quad_clean.evt
Size (bytes)486,864,00091,543,680
Size464.3 MB 87.3 MB
Events in quadrant A3,305,386660,489
Events in quadrant B2,493,500682,384
Events in quadrant C3,026,534630,765
Events in quadrant D8,785,793427,157

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130643
B0107492
C0122312
D0298322

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0250

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A52951102.077432%
B529550.094429%
C5295470.887630%
D5295165631.274788%

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 7419 5296 64 64 0.86% 1.21%
B 7419 5296 0 0 0.00% 0.00%
C 7419 5296 39 39 0.53% 0.74%
D 7419 5296 2044 2044 27.55% 38.60%

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 15 222 461572 3725.04 613 603 123.7
A 10 83 425487 3433.44 613 603 123.7
A 13 248 19202 150.3 613 603 123.7
B 0 190 59849 502.3 613 599 118.0
B 12 111 14309 116.23 613 599 118.0
B 11 111 13081 105.82 613 599 118.0
C 15 208 461997 3380.45 585 589 136.5
C 15 214 223415 1632.51 585 589 136.5
C 3 233 42998 310.7 585 589 136.5
D 12 235 6217037 46896.55 541 526 132.6
D 1 47 199276 1499.34 541 526 132.6
D 12 233 195502 1470.87 541 526 132.6

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