ASTROSAT CZTI

Data Quality Report

Orbit 08066

Creation date: 2024-06-27T15:27:31.082724
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/AS1A02_055T01_9000001114_08066cztM0_level2.evt modeM0/AS1A02_055T01_9000001114_08066cztM0_level2_quad_clean.evt
Size (bytes)686,070,720111,576,960
Size654.3 MB 106.4 MB
Events in quadrant A3,982,545697,843
Events in quadrant B4,346,423718,302
Events in quadrant C4,038,171727,376
Events in quadrant D7,828,903639,407

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0179543
B0187872
C0180622
D0294722

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01740
B01740
C01740
D01740

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8585780.908561%
B85851992.317997%
C8585600.698893%
D8585156418.217822%

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 9245 8587 0 0 0.00% 0.00%
B 9245 8587 5 5 0.05% 0.06%
C 9245 8587 0 0 0.00% 0.00%
D 9245 8587 1225 1225 13.25% 14.27%

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 14 111 17571 78.51 1030 1005 211.0
A 0 226 9607 40.77 1030 1005 211.0
A 12 194 9197 38.83 1030 1005 211.0
B 4 81 146677 726.11 1043 1017 200.6
B 11 51 54147 264.85 1043 1017 200.6
B 4 239 50475 246.55 1043 1017 200.6
C 1 16 49583 204.55 1018 1025 237.4
C 9 54 8059 29.63 1018 1025 237.4
C 13 61 7908 28.99 1018 1025 237.4
D 1 52 3730823 15650.0 887 866 238.3
D 1 83 675080 2828.84 887 866 238.3
D 2 234 26603 107.99 887 866 238.3

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