ASTROSAT CZTI

Data Quality Report

Orbit 48127

Creation date: 2024-08-21T23:36:19.677350
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/AS1T05_223T01_9000006402_48127cztM0_level2.fits modeM0/AS1T05_223T01_9000006402_48127cztM0_level2_quad_clean.evt
Size (bytes)360,489,60075,960,000
Size343.8 MB 72.4 MB
Events in quadrant A6,225,457642,424
Events in quadrant B991,581108
Events in quadrant C2,659,725655,133
Events in quadrant D3,005,859593,689

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0223793
B061441
C0120661
D0132191

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58422945.032523%
B5842584199.982883%
C5842370.633345%
D58421502.567614%

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 7037 5842 94 94 1.34% 1.61%
B 7036 5841 0 0 0.00% 0.00%
C 7037 5842 8 8 0.11% 0.14%
D 7037 5843 109 109 1.55% 1.87%

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 3608137 26898.07 648 635 134.1
A 13 248 68270 504.3 648 635 134.1
A 7 3 34025 248.96 648 635 134.1
B 2 177 808038 78750.23 41 40 10.3
B 4 21 8371 811.97 41 40 10.3
B 0 198 2262 216.56 41 40 10.3
C 12 2 58922 390.31 640 641 149.3
C 1 16 53274 352.48 640 641 149.3
C 14 254 37055 243.86 640 641 149.3
D 2 37 372685 2350.04 637 618 158.3
D 12 233 40008 248.79 637 618 158.3
D 2 234 32148 199.15 637 618 158.3

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