ASTROSAT CZTI

Data Quality Report

Orbit 29193

Creation date: 2024-06-27T20:01:18.876237
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_048T07_9000004188_29193cztM0_level2.evt modeM0/AS1A10_048T07_9000004188_29193cztM0_level2_quad_clean.evt
Size (bytes)720,535,68072,169,920
Size687.2 MB 68.8 MB
Events in quadrant A3,629,327444,699
Events in quadrant B3,573,864452,233
Events in quadrant C8,720,887402,125
Events in quadrant D5,446,756420,378

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150072
B0147562
C0306264
D0210612

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6678801.197963%
B6678881.317760%
C6677126518.945634%
D66774456.664670%

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 7773 6679 0 0 0.00% 0.00%
B 7773 6679 1 1 0.01% 0.01%
C 7772 6678 625 625 8.04% 9.36%
D 7772 6678 335 335 4.31% 5.02%

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 1 113 179994 1005.29 894 877 178.2
A 13 254 12172 63.39 894 877 178.2
A 3 137 8531 42.96 894 877 178.2
B 0 183 72564 427.67 877 856 167.7
B 12 111 20667 118.15 877 856 167.7
B 11 111 19165 109.2 877 856 167.7
C 3 233 5398425 28527.75 815 822 189.2
C 14 238 130560 685.7 815 822 189.2
C 2 114 15342 76.74 815 822 189.2
D 1 52 1546327 7695.15 846 824 200.8
D 8 195 462158 2297.01 846 824 200.8
D 7 80 109916 543.18 846 824 200.8

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