ASTROSAT CZTI

Data Quality Report

Orbit 03519

Creation date: 2024-06-27T14:30:26.542699
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/AS1G05_045T01_9000000468_03519cztM0_level2.evt modeM0/AS1G05_045T01_9000000468_03519cztM0_level2_quad_clean.evt
Size (bytes)432,293,76084,571,200
Size412.3 MB 80.7 MB
Events in quadrant A2,854,077536,092
Events in quadrant B3,275,643537,483
Events in quadrant C3,413,664532,516
Events in quadrant D3,110,571505,559

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131793
B0142732
C0144852
D0141762

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6445230.356866%
B6445360.558573%
C6445600.930954%
D64451352.094647%

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 7515 6446 0 0 0.00% 0.00%
B 7515 6446 5 5 0.07% 0.08%
C 7515 6446 23 23 0.31% 0.36%
D 7515 6446 129 129 1.72% 2.00%

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 15 41770 275.38 725 707 149.1
A 0 226 8198 50.24 725 707 149.1
A 12 194 7779 47.43 725 707 149.1
B 15 204 303930 2149.11 739 721 141.1
B 15 85 35935 249.59 739 721 141.1
B 0 229 30125 208.41 739 721 141.1
C 1 192 548721 3296.63 713 717 166.2
C 1 16 49343 292.52 713 717 166.2
C 15 208 14645 83.79 713 717 166.2
D 2 31 328796 1950.3 699 680 168.2
D 13 239 48440 283.88 699 680 168.2
D 5 233 29714 172.57 699 680 168.2

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