ASTROSAT CZTI

Data Quality Report

Orbit 44969

Creation date: 2024-06-27T23:08:34.830206
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_044T01_9000006034_44969cztM0_level2.fits modeM0/AS1A13_044T01_9000006034_44969cztM0_level2_quad_clean.evt
Size (bytes)583,989,120110,675,520
Size556.9 MB 105.5 MB
Events in quadrant A5,888,838753,407
Events in quadrant B4,574,714765,151
Events in quadrant C3,351,103748,319
Events in quadrant D7,276,836610,953

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0223292
B0180332
C0147302
D0263395

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67892894.256886%
B67893364.949183%
C6789761.119458%
D6788108415.969358%

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 7709 6791 20 20 0.26% 0.29%
B 7709 6791 180 180 2.33% 2.65%
C 7709 6791 25 25 0.32% 0.37%
D 7708 6790 814 814 10.56% 11.99%

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 2720396 16749.75 779 763 162.4
A 7 3 53731 326.22 779 763 162.4
A 13 248 30438 182.76 779 763 162.4
B 0 189 512846 3367.8 771 747 152.1
B 0 219 248462 1629.09 771 747 152.1
B 0 190 112826 737.08 771 747 152.1
C 12 2 165503 908.05 771 775 181.4
C 12 250 55583 302.13 771 775 181.4
C 14 254 49925 270.94 771 775 181.4
D 13 249 1535439 8425.68 732 710 182.1
D 12 233 649315 3560.85 732 710 182.1
D 13 171 594809 3261.61 732 710 182.1

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