ASTROSAT CZTI

Data Quality Report

Orbit 03027

Creation date: 2024-06-27T14:23:38.900859
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_237T02_9000000422_03027cztM0_level2.evt modeM0/AS1G05_237T02_9000000422_03027cztM0_level2_quad_clean.evt
Size (bytes)220,351,68048,787,200
Size210.1 MB 46.5 MB
Events in quadrant A1,767,114307,947
Events in quadrant B1,501,441313,013
Events in quadrant C1,467,828317,203
Events in quadrant D1,716,802310,696

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0660
B0660
C0660
D0660

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A075562
B067781
C067441
D074681

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A32121053.268991%
B3212190.591532%
C321290.280199%
D3212190.591532%

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 5367 3213 100 100 1.86% 3.11%
B 5367 3213 16 16 0.30% 0.50%
C 5366 3212 6 6 0.11% 0.19%
D 5367 3213 22 22 0.41% 0.68%

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 14 249 379578 5518.29 334 327 68.7
A 0 50 62442 903.8 334 327 68.7
A 8 15 13615 193.35 334 327 68.7
B 14 167 59238 879.25 344 337 67.0
B 2 249 47606 705.61 344 337 67.0
B 0 219 42928 635.78 344 337 67.0
C 6 80 106094 1347.02 335 337 78.5
C 15 208 24172 303.59 335 337 78.5
C 12 206 6382 77.0 335 337 78.5
D 13 114 308067 3911.27 330 323 78.7
D 2 152 75937 961.02 330 323 78.7
D 12 1 23866 299.22 330 323 78.7

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