ASTROSAT CZTI

Data Quality Report

Orbit 27584

Creation date: 2024-06-27T19:41:45.947578
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/AS1C05_019T04_9000003974_27584cztM0_level2.evt modeM0/AS1C05_019T04_9000003974_27584cztM0_level2_quad_clean.evt
Size (bytes)439,251,840101,401,920
Size418.9 MB 96.7 MB
Events in quadrant A2,835,489671,729
Events in quadrant B3,018,329682,039
Events in quadrant C2,977,301660,304
Events in quadrant D4,057,410631,448

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125030
B0130080
C0128000
D0163840

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6092330.541694%
B6093631.033973%
C6093811.329394%
D60933325.448876%

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 7092 6093 0 0 0.00% 0.00%
B 7093 6094 16 16 0.23% 0.26%
C 7093 6094 3 3 0.04% 0.05%
D 7093 6094 253 253 3.57% 4.15%

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 13 254 10783 68.54 731 715 146.9
A 8 192 7209 44.21 731 715 146.9
A 3 137 7105 43.5 731 715 146.9
B 15 32 81650 579.96 726 705 139.6
B 3 64 46747 329.88 726 705 139.6
B 10 245 17265 118.65 726 705 139.6
C 14 238 115134 687.54 712 716 166.4
C 2 16 33404 196.42 712 716 166.4
C 10 22 33290 195.74 712 716 166.4
D 1 52 1196595 7103.67 701 681 168.4
D 2 250 90883 535.8 701 681 168.4
D 6 112 90249 532.03 701 681 168.4

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