ASTROSAT CZTI

Data Quality Report

Orbit 03170

Creation date: 2024-06-27T14:25:29.384884
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/AS1G05_218T02_9000000434_03170cztM0_level2.evt modeM0/AS1G05_218T02_9000000434_03170cztM0_level2_quad_clean.evt
Size (bytes)423,970,56078,984,000
Size404.3 MB 75.3 MB
Events in quadrant A3,179,171494,794
Events in quadrant B3,028,203508,706
Events in quadrant C3,234,308484,048
Events in quadrant D2,977,487472,399

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360735
B01306547
C01387129
D01333139

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61771211.958880%
B6174520.842242%
C6180701.132686%
D6176570.922927%

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 7508 6192 68 68 0.91% 1.10%
B 7508 6192 6 6 0.08% 0.10%
C 7508 6193 50 50 0.67% 0.81%
D 7508 6190 39 39 0.52% 0.63%

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 12 247 212342 1408.7 734 717 150.2
A 0 149 115166 761.84 734 717 150.2
A 0 226 18969 121.5 734 717 150.2
B 4 80 64813 444.91 747 729 144.0
B 2 249 36293 246.9 747 729 144.0
B 0 219 14075 92.66 747 729 144.0
C 1 192 405344 2517.71 700 703 160.7
C 6 80 37170 226.9 700 703 160.7
C 15 208 24214 146.29 700 703 160.7
D 13 239 84778 493.17 703 680 170.5
D 2 136 62660 363.47 703 680 170.5
D 13 223 58773 340.67 703 680 170.5

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