ASTROSAT CZTI

Data Quality Report

Orbit 19029

Creation date: 2024-06-27T17:58:16.144504
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_022T03_9000002832_19029cztM0_level2.evt modeM0/AS1A05_022T03_9000002832_19029cztM0_level2_quad_clean.evt
Size (bytes)436,132,80086,253,120
Size415.9 MB 82.3 MB
Events in quadrant A2,999,420551,740
Events in quadrant B3,639,923553,877
Events in quadrant C3,051,578533,016
Events in quadrant D3,081,502526,071

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131131
B0148671
C0131541
D0135111

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6411420.655124%
B64121512.354959%
C6412600.935745%
D6412420.655022%

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 7256 6412 0 0 0.00% 0.00%
B 7257 6413 46 46 0.63% 0.72%
C 7257 6413 0 0 0.00% 0.00%
D 7257 6413 7 7 0.10% 0.11%

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 14 235 8461 48.7 777 759 158.2
A 0 226 6818 38.31 777 759 158.2
A 3 137 6098 33.76 777 759 158.2
B 3 112 555288 3679.18 768 746 150.7
B 0 190 27358 176.56 768 746 150.7
B 0 229 20298 129.72 768 746 150.7
C 14 238 113699 640.78 744 749 176.3
C 3 233 38860 216.21 744 749 176.3
C 13 61 5274 25.67 744 749 176.3
D 1 52 85707 455.24 759 739 186.6
D 7 238 75845 402.4 759 739 186.6
D 2 234 29260 152.81 759 739 186.6

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