ASTROSAT CZTI

Data Quality Report

Orbit 37048

Creation date: 2024-06-27T21:34:49.349172
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/AS1A11_083T04_9000005272_37048cztM0_level2.evt modeM0/AS1A11_083T04_9000005272_37048cztM0_level2_quad_clean.evt
Size (bytes)505,114,56063,930,240
Size481.7 MB 61.0 MB
Events in quadrant A2,593,658405,317
Events in quadrant B3,048,667409,766
Events in quadrant C3,225,963398,744
Events in quadrant D6,084,353365,551

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0290

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110462
B0125462
C0130052
D0216232

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5087130.255553%
B50871472.889719%
C5087901.769216%
D5087141127.737370%

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 6519 5088 7 7 0.11% 0.14%
B 6519 5088 90 90 1.38% 1.77%
C 6519 5088 56 56 0.86% 1.10%
D 6519 5088 1133 1133 17.38% 22.27%

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 10 83 236850 1998.75 581 570 118.2
A 11 254 97034 816.01 581 570 118.2
A 13 254 7685 60.19 581 570 118.2
B 5 184 231398 2052.27 574 559 112.5
B 5 172 142424 1261.25 574 559 112.5
B 0 229 114997 1017.41 574 559 112.5
C 14 254 323115 2430.01 562 565 132.7
C 0 10 280562 2109.43 562 565 132.7
C 15 214 215113 1616.35 562 565 132.7
D 12 17 3678148 30743.21 480 467 119.6
D 1 47 153642 1280.45 480 467 119.6
D 2 250 88714 737.69 480 467 119.6

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