ASTROSAT CZTI

Data Quality Report

Orbit 09463

Creation date: 2024-06-27T15:46:26.202820
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/AS1T01_177T01_9000001344_09463cztM0_level2.evt modeM0/AS1T01_177T01_9000001344_09463cztM0_level2_quad_clean.evt
Size (bytes)110,396,16025,914,240
Size105.3 MB 24.7 MB
Events in quadrant A793,122171,965
Events in quadrant B798,886171,698
Events in quadrant C718,685165,812
Events in quadrant D920,537156,299

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A057852440
B056562316
C054652228
D070693390

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05426
B05418
C05422
D05418

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A161830.185414%
B162710.061463%
C161400.000000%
D1521100.657462%

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 2726 2116 0 0 0.00% 0.00%
B 2720 2135 1 1 0.04% 0.05%
C 2725 2122 0 0 0.00% 0.00%
D 2726 2008 2 2 0.07% 0.10%

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 8 5 27017 649.46 194 190 41.3
A 15 14 8260 195.37 194 190 41.3
A 1 162 5757 134.77 194 190 41.3
B 0 187 22773 583.57 192 188 38.7
B 0 214 13361 340.38 192 188 38.7
B 10 252 9404 238.13 192 188 38.7
C 13 61 1367 26.96 184 184 43.9
C 3 202 554 8.43 184 184 43.9
C 3 203 411 5.17 184 184 43.9
D 1 52 154190 3559.8 175 171 43.3
D 13 104 73192 1687.71 175 171 43.3
D 7 71 10374 235.82 175 171 43.3

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