ASTROSAT CZTI

Data Quality Report

Orbit 33078

Creation date: 2024-06-27T20:44:43.879019
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/AS1A11_007T07_9000004758_33078cztM0_level2.evt modeM0/AS1A11_007T07_9000004758_33078cztM0_level2_quad_clean.evt
Size (bytes)601,231,68055,929,600
Size573.4 MB 53.3 MB
Events in quadrant A2,312,585397,233
Events in quadrant B2,852,231392,405
Events in quadrant C3,116,231389,320
Events in quadrant D9,585,701159,781

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0101663
B0116492
C0125442
D0319972

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0330

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A503750.099265%
B50371062.104427%
C50371843.652968%
D5037285256.621005%

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 7069 5038 0 0 0.00% 0.00%
B 7069 5038 80 80 1.13% 1.59%
C 7069 5038 151 151 2.14% 3.00%
D 7069 5038 2662 2662 37.66% 52.84%

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 15 169 24967 205.01 588 577 119.0
A 13 254 11437 91.28 588 577 119.0
A 3 137 5429 40.78 588 577 119.0
B 5 172 320275 2909.18 583 571 109.9
B 0 219 65483 590.67 583 571 109.9
B 0 189 42336 380.04 583 571 109.9
C 8 111 460642 3487.02 571 577 131.9
C 0 10 219463 1659.03 571 577 131.9
C 7 221 172562 1303.55 571 577 131.9
D 12 218 4617786 45298.77 386 378 101.9
D 7 223 2518442 24703.3 386 378 101.9
D 8 195 364404 3571.25 386 378 101.9

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