ASTROSAT CZTI

Data Quality Report

Orbit 09695

Creation date: 2024-06-27T15:49:27.479978
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/AS1A03_068T01_9000001380_09695cztM0_level2.evt modeM0/AS1A03_068T01_9000001380_09695cztM0_level2_quad_clean.evt
Size (bytes)470,744,64089,049,600
Size448.9 MB 84.9 MB
Events in quadrant A3,026,178576,012
Events in quadrant B3,077,721591,203
Events in quadrant C3,643,349545,537
Events in quadrant D4,076,062538,907

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130645
B0131332
C0151962
D01625910

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6382300.470072%
B6383470.736331%
C63832684.198653%
D63822113.306174%

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 7543 6384 0 0 0.00% 0.00%
B 7543 6384 0 0 0.00% 0.00%
C 7543 6384 194 194 2.57% 3.04%
D 7543 6384 188 188 2.49% 2.94%

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 0 226 7171 40.27 785 768 159.0
A 12 194 6316 34.89 785 768 159.0
A 3 1 4762 25.12 785 768 159.0
B 12 111 17404 110.27 790 774 150.8
B 11 111 13969 87.49 790 774 150.8
B 14 111 11823 73.26 790 774 150.8
C 14 234 734154 4289.33 742 745 171.0
C 9 68 12270 67.4 742 745 171.0
C 13 61 5572 28.23 742 745 171.0
D 1 52 1021892 5275.34 738 723 193.6
D 8 195 148475 763.28 738 723 193.6
D 2 152 45983 233.81 738 723 193.6

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