ASTROSAT CZTI

Data Quality Report

Orbit 05292

Creation date: 2024-06-27T14:53:33.916703
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_240T02_9000000670_05292cztM0_level2.evt modeM0/AS1G05_240T02_9000000670_05292cztM0_level2_quad_clean.evt
Size (bytes)2,392,750,080300,090,240
Size2.2 GB 286.2 MB
Events in quadrant A16,714,0921,832,247
Events in quadrant B13,430,9531,856,976
Events in quadrant C12,572,4081,820,279
Events in quadrant D27,837,8921,630,955

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05760
B05760
C05760
D05760

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0270

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0685415
B0592404
C0580944
D01024264

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A283079523.363126%
B283075441.921786%
C283073841.356555%
D28307520718.394743%

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 31102 28307 270 270 0.87% 0.95%
B 31102 28307 30 30 0.10% 0.11%
C 31102 28310 1 1 0.00% 0.00%
D 31101 28308 4054 4054 13.03% 14.32%

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 13 251 3967649 5907.67 3274 3198 671.1
A 0 50 139815 203.58 3274 3198 671.1
A 12 194 32570 43.77 3274 3198 671.1
B 10 16 166280 255.3 3325 3240 638.6
B 4 80 108190 164.34 3325 3240 638.6
B 15 204 107415 163.12 3325 3240 638.6
C 13 61 25948 30.44 3213 3227 746.4
C 12 4 12393 12.28 3213 3227 746.4
C 14 67 11349 10.88 3213 3227 746.4
D 11 145 14930434 20507.54 2962 2874 727.9
D 2 33 638351 873.02 2962 2874 727.9
D 2 136 380193 518.36 2962 2874 727.9

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