ASTROSAT CZTI

Data Quality Report

Orbit 07832

Creation date: 2024-06-27T15:24:35.084562
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/AS1G06_077T02_9000001076_07832cztM0_level2.evt modeM0/AS1G06_077T02_9000001076_07832cztM0_level2_quad_clean.evt
Size (bytes)218,341,44032,425,920
Size208.2 MB 30.9 MB
Events in quadrant A1,481,844184,166
Events in quadrant B1,574,775191,037
Events in quadrant C1,601,371189,446
Events in quadrant D1,724,858179,004

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A067191
B068390
C070700
D074210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0680
B0680
C0680
D0680

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A334510.029895%
B334530.089686%
C334510.029895%
D3345210.627803%

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 3345 3345 0 0 0.00% 0.00%
B 3345 3345 0 0 0.00% 0.00%
C 3345 3345 0 0 0.00% 0.00%
D 3345 3345 12 12 0.36% 0.36%

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 0 128 8874 109.41 380 372 77.7
A 0 226 3703 42.87 380 372 77.7
A 12 194 3665 42.38 380 372 77.7
B 0 219 27927 373.51 381 372 73.8
B 4 239 19944 265.3 381 372 73.8
B 0 214 18798 249.76 381 372 73.8
C 8 229 114670 1316.14 373 375 86.8
C 1 16 28961 329.18 373 375 86.8
C 13 61 2832 28.29 373 375 86.8
D 2 136 103596 1124.82 374 363 91.8
D 2 152 67403 730.46 374 363 91.8
D 7 71 52061 563.3 374 363 91.8

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