ASTROSAT CZTI

Data Quality Report

Orbit 29553

Creation date: 2024-06-27T20:05:23.454984
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_094T12_9000004260_29553cztM0_level2.evt modeM0/AS1A10_094T12_9000004260_29553cztM0_level2_quad_clean.evt
Size (bytes)346,947,84057,533,760
Size330.9 MB 54.9 MB
Events in quadrant A1,880,743381,055
Events in quadrant B1,957,632388,875
Events in quadrant C2,120,793356,301
Events in quadrant D4,288,236346,271

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A079551
B081501
C086761
D0154331

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0780
B0780
C0780
D0780

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3814100.262192%
B3814190.498165%
C381459715.652858%
D3814802.097535%

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 4834 3815 0 0 0.00% 0.00%
B 4834 3815 6 6 0.12% 0.16%
C 4834 3815 0 0 0.00% 0.00%
D 4834 3815 70 70 1.45% 1.83%

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 0 13 42543 433.43 475 466 97.1
A 13 254 8011 77.72 475 466 97.1
A 3 137 4782 44.46 475 466 97.1
B 5 255 37973 408.5 472 459 91.8
B 5 172 28286 303.01 472 459 91.8
B 0 190 16219 171.61 472 459 91.8
C 14 238 213984 2171.78 419 421 98.3
C 14 254 210107 2132.35 419 421 98.3
C 3 233 46744 471.07 419 421 98.3
D 8 195 2375210 22024.33 451 439 107.8
D 13 153 108232 999.7 451 439 107.8
D 7 238 33960 310.88 451 439 107.8

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