ASTROSAT CZTI

Data Quality Report

Orbit 28803

Creation date: 2024-06-27T19:56:33.316140
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/AS1A10_121T01_9000004134_28803cztM0_level2.evt modeM0/AS1A10_121T01_9000004134_28803cztM0_level2_quad_clean.evt
Size (bytes)238,276,80039,749,760
Size227.2 MB 37.9 MB
Events in quadrant A1,315,499257,824
Events in quadrant B1,383,536272,651
Events in quadrant C1,453,307258,187
Events in quadrant D2,896,939239,722

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A053891
B056221
C059231
D0102695

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0520
B0520
C0520
D0520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2428200.823723%
B2428341.400329%
C2428722.965404%
D242746018.953440%

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 3663 2428 0 0 0.00% 0.00%
B 3663 2428 0 0 0.00% 0.00%
C 3663 2428 5 5 0.14% 0.21%
D 3662 2427 438 438 11.96% 18.05%

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 5 98 15041 217.54 330 323 67.7
A 14 239 11168 160.29 330 323 67.7
A 14 235 11155 160.1 330 323 67.7
B 5 255 38489 609.0 334 327 62.7
B 0 229 14478 225.83 334 327 62.7
B 5 172 7187 109.47 334 327 62.7
C 4 254 76462 989.53 325 328 76.9
C 14 238 57859 747.74 325 328 76.9
C 3 233 40153 517.61 325 328 76.9
D 1 52 1069763 14800.53 299 291 72.3
D 8 195 223197 3084.82 299 291 72.3
D 12 233 219628 3035.43 299 291 72.3

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