ASTROSAT CZTI

Data Quality Report

Orbit 27244

Creation date: 2024-06-27T19:38:08.525259
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/AS1T03_243T01_9000003918_27244cztM0_level2.evt modeM0/AS1T03_243T01_9000003918_27244cztM0_level2_quad_clean.evt
Size (bytes)590,394,24096,511,680
Size563.0 MB 92.0 MB
Events in quadrant A3,513,769638,809
Events in quadrant B3,558,514648,878
Events in quadrant C3,398,011611,531
Events in quadrant D6,954,432554,757

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147160
B0147370
C0142790
D0251810

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6715941.399851%
B67151392.069993%
C67151011.504095%
D6715111816.649293%

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 7685 6716 19 19 0.25% 0.28%
B 7685 6716 10 10 0.13% 0.15%
C 7685 6716 0 0 0.00% 0.00%
D 7685 6716 1174 1174 15.28% 17.48%

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 14 235 141003 807.49 865 851 173.6
A 13 248 19681 108.49 865 851 173.6
A 8 192 11919 63.77 865 851 173.6
B 15 33 116517 708.44 860 840 163.3
B 0 245 25970 153.9 860 840 163.3
B 5 172 24033 142.04 860 840 163.3
C 14 238 131217 676.65 820 825 192.7
C 1 16 41238 209.72 820 825 192.7
C 15 208 20701 103.14 820 825 192.7
D 1 52 3233062 15794.63 788 768 204.6
D 15 0 332008 1618.61 788 768 204.6
D 2 250 172087 837.15 788 768 204.6

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