ASTROSAT CZTI

Data Quality Report

Orbit 30293

Creation date: 2024-06-27T20:13:12.210984
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/AS1A10_007T01_9000004350_30293cztM0_level2.evt modeM0/AS1A10_007T01_9000004350_30293cztM0_level2_quad_clean.evt
Size (bytes)601,871,04088,349,760
Size574.0 MB 84.3 MB
Events in quadrant A3,254,710563,939
Events in quadrant B5,158,461566,558
Events in quadrant C4,577,872549,792
Events in quadrant D4,797,552542,237

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138302
B0198022
C0180562
D0185952

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6494620.954727%
B64941181.817062%
C64941912.941176%
D64933265.020792%

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 7594 6495 0 0 0.00% 0.00%
B 7594 6494 0 0 0.00% 0.00%
C 7594 6495 24 24 0.32% 0.37%
D 7593 6493 195 195 2.57% 3.00%

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 8 192 22820 131.19 833 818 167.7
A 14 239 17555 99.8 833 818 167.7
A 13 254 12359 68.82 833 818 167.7
B 6 159 1864992 11721.85 831 811 159.0
B 12 111 19293 116.21 831 811 159.0
B 11 111 17770 106.64 831 811 159.0
C 3 233 1221453 6490.56 805 811 188.1
C 14 238 133838 707.35 805 811 188.1
C 0 10 63090 331.16 805 811 188.1
D 1 52 503191 2482.6 798 781 202.4
D 13 104 448267 2211.2 798 781 202.4
D 8 195 321102 1582.83 798 781 202.4

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