ASTROSAT CZTI

Data Quality Report

Orbit 05344

Creation date: 2024-06-27T14:54:08.586320
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/AS1G05_152T01_9000000676_05344cztM0_level2.evt modeM0/AS1G05_152T01_9000000676_05344cztM0_level2_quad_clean.evt
Size (bytes)719,608,32096,742,080
Size686.3 MB 92.3 MB
Events in quadrant A3,397,630618,602
Events in quadrant B3,778,500630,578
Events in quadrant C3,853,744624,036
Events in quadrant D10,263,277541,269

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0131

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01566730
B01626028
C01618418
D03571779

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73841041.408451%
B73871031.394341%
C7390951.285521%
D7381197026.690150%

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 8760 7397 56 56 0.64% 0.76%
B 8760 7397 36 36 0.41% 0.49%
C 8760 7397 0 0 0.00% 0.00%
D 8760 7393 1267 1267 14.46% 17.14%

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 169686 1005.88 818 798 167.9
A 0 50 65411 384.83 818 798 167.9
A 13 251 10184 55.9 818 798 167.9
B 4 80 253330 1595.78 837 815 158.2
B 10 16 160331 1008.07 837 815 158.2
B 0 199 31247 192.31 837 815 158.2
C 1 16 618081 3270.95 818 819 188.7
C 9 16 26276 134.9 818 819 188.7
C 14 67 11917 58.81 818 819 188.7
D 2 63 6958496 38335.01 742 717 181.5
D 2 16 88538 483.86 742 717 181.5
D 13 61 72862 397.49 742 717 181.5

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