ASTROSAT CZTI

Data Quality Report

Orbit 16414

Creation date: 2024-06-27T17:22:20.540064
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/AS1A05_069T01_9000002424_16414cztM0_level2.evt modeM0/AS1A05_069T01_9000002424_16414cztM0_level2_quad_clean.evt
Size (bytes)516,430,08076,599,360
Size492.5 MB 73.1 MB
Events in quadrant A3,541,247471,591
Events in quadrant B4,160,978494,161
Events in quadrant C3,581,942458,078
Events in quadrant D3,912,153439,226

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145163
B0164562
C0145192
D0159192

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65441652.521394%
B65442363.606357%
C6544941.436430%
D65442834.324572%

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 7860 6546 61 61 0.78% 0.93%
B 7860 6545 117 117 1.49% 1.79%
C 7860 6545 3 3 0.04% 0.05%
D 7860 6546 217 217 2.76% 3.32%

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 15 174 223026 1331.0 843 828 166.9
A 9 143 63032 372.61 843 828 166.9
A 15 223 15299 86.68 843 828 166.9
B 0 229 412322 2585.89 854 836 159.1
B 10 16 135814 848.24 854 836 159.1
B 15 35 104389 650.75 854 836 159.1
C 3 233 265910 1419.69 811 817 186.7
C 14 238 126114 671.02 811 817 186.7
C 0 207 17229 87.89 811 817 186.7
D 12 218 580725 2988.48 797 776 194.1
D 10 70 198639 1019.59 797 776 194.1
D 15 0 33131 166.73 797 776 194.1

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