ASTROSAT CZTI

Data Quality Report

Orbit 44420

Creation date: 2024-06-27T23:03:25.074669
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/AS1A13_072T03_9000006000_44420cztM0_level2.fits modeM0/AS1A13_072T03_9000006000_44420cztM0_level2_quad_clean.evt
Size (bytes)349,378,56073,555,200
Size333.2 MB 70.1 MB
Events in quadrant A3,243,101498,862
Events in quadrant B2,322,683512,074
Events in quadrant C2,790,505479,103
Events in quadrant D4,215,300410,979

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0940
B0940
C0940
D0940

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134400
B0100470
C0114680
D0157741

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A46341984.272767%
B46341793.862754%
C46342745.912818%
D463363813.770775%

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 4634 4634 0 0 0.00% 0.00%
B 4634 4634 2 2 0.04% 0.04%
C 4634 4634 82 82 1.77% 1.77%
D 4633 4633 452 452 9.76% 9.76%

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 1053861 8876.35 560 545 118.7
A 8 4 25684 211.85 560 545 118.7
A 3 137 6562 50.71 560 545 118.7
B 0 229 38001 331.52 556 538 113.0
B 0 190 29208 253.71 556 538 113.0
B 0 155 14724 125.54 556 538 113.0
C 12 16 441824 3407.06 542 543 129.5
C 3 233 149781 1152.24 542 543 129.5
C 14 254 67122 514.05 542 543 129.5
D 4 221 714114 5383.04 525 506 132.6
D 2 249 493000 3715.09 525 506 132.6
D 13 249 465587 3508.3 525 506 132.6

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