ASTROSAT CZTI

Data Quality Report

Orbit 11260

Creation date: 2024-06-27T16:10:31.229660
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/AS1C03_012T01_9000001642_11260cztM0_level2.evt modeM0/AS1C03_012T01_9000001642_11260cztM0_level2_quad_clean.evt
Size (bytes)601,580,160108,106,560
Size573.7 MB 103.1 MB
Events in quadrant A5,139,992704,505
Events in quadrant B4,308,188741,288
Events in quadrant C3,327,997719,714
Events in quadrant D5,005,337657,588

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0250

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0197963
B0171792
C0139912
D0195232

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64634446.869875%
B64632804.332353%
C6463380.587962%
D64633164.889370%

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 9028 6464 239 239 2.65% 3.70%
B 9028 6465 115 115 1.27% 1.78%
C 9028 6465 20 20 0.22% 0.31%
D 9028 6465 213 213 2.36% 3.29%

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 979824 5910.19 818 807 165.6
A 14 238 558830 3368.71 818 807 165.6
A 1 162 83217 497.5 818 807 165.6
B 4 239 778829 4974.39 842 825 156.4
B 11 51 118226 750.64 842 825 156.4
B 15 204 34434 214.89 842 825 156.4
C 9 204 80070 419.06 821 830 189.1
C 5 239 33218 171.28 821 830 189.1
C 12 4 11384 55.81 821 830 189.1
D 8 195 719248 3834.37 791 774 187.4
D 10 199 241639 1285.45 791 774 187.4
D 13 249 231248 1230.0 791 774 187.4

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