ASTROSAT CZTI

Data Quality Report

Orbit 03819

Creation date: 2024-06-27T14:33:57.326039
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_189T01_9000000492_03819cztM0_level2.evt modeM0/AS1G05_189T01_9000000492_03819cztM0_level2_quad_clean.evt
Size (bytes)425,479,68068,143,680
Size405.8 MB 65.0 MB
Events in quadrant A3,112,246423,863
Events in quadrant B3,773,773421,970
Events in quadrant C2,620,423410,947
Events in quadrant D2,985,336401,423

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131542
B0149291
C0118591
D0130661

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5795230.396894%
B57951773.054357%
C5795180.310613%
D5795651.121657%

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 7025 5795 0 0 0.00% 0.00%
B 7025 5796 125 125 1.78% 2.16%
C 7025 5795 2 2 0.03% 0.03%
D 7025 5796 48 48 0.68% 0.83%

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 0 199 398112 2825.82 691 678 140.6
A 0 226 40709 284.63 691 678 140.6
A 8 15 9643 63.74 691 678 140.6
B 14 167 973621 7330.46 693 677 132.7
B 15 204 50576 375.95 693 677 132.7
B 0 173 45219 335.59 693 677 132.7
C 9 247 15583 95.93 662 669 155.5
C 10 65 6210 35.64 662 669 155.5
C 13 61 5556 31.44 662 669 155.5
D 12 227 375772 2343.49 659 642 160.1
D 13 223 105836 657.16 659 642 160.1
D 14 34 19944 120.58 659 642 160.1

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