ASTROSAT CZTI

Data Quality Report

Orbit 15729

Creation date: 2024-06-27T17:12:39.506543
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/AS1G08_030T01_9000002326_15729cztM0_level2.evt modeM0/AS1G08_030T01_9000002326_15729cztM0_level2_quad_clean.evt
Size (bytes)445,196,16093,640,320
Size424.6 MB 89.3 MB
Events in quadrant A3,064,825606,590
Events in quadrant B3,204,623614,625
Events in quadrant C3,285,861589,211
Events in quadrant D3,484,470570,831

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135853
B0138562
C0142592
D0151032

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6519420.644271%
B6519470.720969%
C6519580.889707%
D6519901.380580%

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 7585 6521 14 14 0.18% 0.21%
B 7585 6521 10 10 0.13% 0.15%
C 7585 6521 3 3 0.04% 0.05%
D 7585 6521 57 57 0.75% 0.87%

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 15 239 65066 414.5 776 761 155.1
A 9 143 11089 66.57 776 761 155.1
A 0 226 6752 38.62 776 761 155.1
B 5 236 28689 186.04 783 763 150.1
B 4 216 23519 151.6 783 763 150.1
B 0 228 21061 135.22 783 763 150.1
C 3 233 194194 1090.27 756 760 177.4
C 14 238 116839 654.27 756 760 177.4
C 10 22 15008 80.31 756 760 177.4
D 1 52 420444 2110.65 752 734 198.9
D 12 110 140146 701.08 752 734 198.9
D 2 234 26774 130.95 752 734 198.9

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