ASTROSAT CZTI

Data Quality Report

Orbit 05967

Creation date: 2024-06-27T15:01:19.443876
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/AS1G06_086T01_9000000774_05967cztM0_level2.evt modeM0/AS1G06_086T01_9000000774_05967cztM0_level2_quad_clean.evt
Size (bytes)387,763,200109,926,720
Size369.8 MB 104.8 MB
Events in quadrant A2,777,846726,421
Events in quadrant B2,869,335745,522
Events in quadrant C2,891,255722,845
Events in quadrant D2,774,370693,605

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015426
B015620
C015727
D015621

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A041
B041
C041
D052

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155152662
B0156762684
C0159642767
D0157902708

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6284881.400382%
B6298871.381391%
C6293641.017003%
D6318711.123773%

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 7865 6707 0 0 0.00% 0.00%
B 7866 6713 0 0 0.00% 0.00%
C 7866 6745 22 22 0.28% 0.33%
D 7866 6733 2 2 0.03% 0.03%

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 13 251 19074 125.61 706 687 146.4
A 8 192 13611 88.29 706 687 146.4
A 15 31 10962 70.19 706 687 146.4
B 0 219 28336 199.23 715 698 138.7
B 4 81 23751 166.18 715 698 138.7
B 15 204 22817 159.44 715 698 138.7
C 9 247 161561 1007.7 685 685 159.6
C 9 54 17330 104.26 685 685 159.6
C 8 128 13416 79.74 685 685 159.6
D 12 110 77000 455.55 683 659 167.6
D 2 206 29838 174.12 683 659 167.6
D 8 195 27887 162.48 683 659 167.6

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