ASTROSAT CZTI

Data Quality Report

Orbit 33399

Creation date: 2024-06-27T20:48:24.248511
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/AS1C07_001T03_9000004790_33399cztM0_level2.evt modeM0/AS1C07_001T03_9000004790_33399cztM0_level2_quad_clean.evt
Size (bytes)559,903,68085,965,120
Size534.0 MB 82.0 MB
Events in quadrant A2,625,863583,975
Events in quadrant B3,972,946561,675
Events in quadrant C3,118,125558,734
Events in quadrant D6,847,385493,412

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0116653
B0154242
C0127102
D0244232

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A580270.120648%
B58023806.549466%
C5802500.861772%
D580273412.650810%

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 7145 5803 0 0 0.00% 0.00%
B 7145 5803 287 287 4.02% 4.95%
C 7145 5803 43 43 0.60% 0.74%
D 7145 5803 646 646 9.04% 11.13%

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 13 6 12980 91.62 673 661 134.5
A 9 254 10900 76.15 673 661 134.5
A 13 254 10257 71.37 673 661 134.5
B 5 172 1018570 8184.04 651 633 124.4
B 0 219 93383 745.69 651 633 124.4
B 4 170 61199 486.94 651 633 124.4
C 15 214 249647 1678.88 646 649 148.3
C 0 10 186164 1250.84 646 649 148.3
C 14 254 97464 652.78 646 649 148.3
D 8 195 1768192 11536.95 619 601 153.2
D 14 173 756013 4930.52 619 601 153.2
D 12 218 688645 4490.82 619 601 153.2

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