ASTROSAT CZTI

Data Quality Report

Orbit 00583

Creation date: 2024-06-27T14:00:08.376838
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/AS1P01_118T02_9000000082_00583cztM0_level2.evt modeM0/AS1P01_118T02_9000000082_00583cztM0_level2_quad_clean.evt
Size (bytes)781,672,32066,288,960
Size745.5 MB 63.2 MB
Events in quadrant A5,926,323416,750
Events in quadrant B6,417,727418,996
Events in quadrant C5,283,460421,019
Events in quadrant D5,719,004406,090

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02110426
B02256122
C01921424
D02050736

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4908150.305623%
B4908631.283619%
C490710.020379%
D4905581.182467%

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 7069 4914 151 151 2.14% 3.07%
B 7069 4913 253 253 3.58% 5.15%
C 7069 4913 32 32 0.45% 0.65%
D 7069 4913 176 176 2.49% 3.58%

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 69 72611 212.89 1495 1482 334.1
A 13 160 41631 120.17 1495 1482 334.1
A 0 238 17650 48.39 1495 1482 334.1
B 7 221 329340 935.92 1461 1472 350.3
B 4 206 319067 906.6 1461 1472 350.3
B 4 250 144089 407.11 1461 1472 350.3
C 15 241 44355 115.33 1325 1373 372.7
C 3 159 21307 53.49 1325 1373 372.7
C 5 249 7094 15.35 1325 1373 372.7
D 1 4 159807 410.83 1332 1366 385.7
D 13 221 138366 355.23 1332 1366 385.7
D 13 216 72227 183.74 1332 1366 385.7

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