ASTROSAT CZTI

Data Quality Report

Orbit 47169

Creation date: 2024-06-27T23:32:26.311261
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/AS1C09_003T01_9000006298_47169cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47169cztM0_level2_quad_clean.evt
Size (bytes)406,955,520102,565,440
Size388.1 MB 97.8 MB
Events in quadrant A5,901,605682,643
Events in quadrant B2,966,571710,580
Events in quadrant C2,601,924670,492
Events in quadrant D3,117,161613,666

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0214681
B0130601
C0125301
D0138141

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61361452.363103%
B6137450.733257%
C6137190.309598%
D6137901.466515%

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 7326 6137 34 34 0.46% 0.55%
B 7327 6138 6 6 0.08% 0.10%
C 7327 6138 4 4 0.05% 0.07%
D 7327 6138 79 79 1.08% 1.29%

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 10 83 3292612 24234.86 664 651 135.8
A 13 254 11875 82.63 664 651 135.8
A 9 191 9534 65.4 664 651 135.8
B 4 171 104933 799.31 671 651 130.5
B 0 183 62253 472.17 671 651 130.5
B 4 21 45298 342.21 671 651 130.5
C 1 3 31553 201.21 653 655 153.6
C 3 233 16106 100.62 653 655 153.6
C 14 254 9311 56.37 653 655 153.6
D 2 249 360910 2229.53 646 625 161.6
D 12 218 81125 498.15 646 625 161.6
D 1 47 49707 303.73 646 625 161.6

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