ASTROSAT CZTI

Data Quality Report

Orbit 07031

Creation date: 2024-06-27T15:14:41.337918
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_029T01_9000000964_07031cztM0_level2.evt modeM0/AS1G06_029T01_9000000964_07031cztM0_level2_quad_clean.evt
Size (bytes)442,825,92081,889,920
Size422.3 MB 78.1 MB
Events in quadrant A3,071,099513,133
Events in quadrant B3,220,571520,032
Events in quadrant C3,021,000509,386
Events in quadrant D3,653,634480,983

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133622
B0138291
C0133001
D0154641

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6545260.397250%
B6545350.534759%
C6545180.275019%
D65451131.726509%

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 7660 6546 0 0 0.00% 0.00%
B 7660 6546 0 0 0.00% 0.00%
C 7660 6546 0 0 0.00% 0.00%
D 7660 6546 71 71 0.93% 1.08%

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 8 15 22070 131.11 788 773 162.4
A 13 14 10939 62.59 788 773 162.4
A 0 226 7470 41.23 788 773 162.4
B 0 214 80643 522.55 796 779 152.8
B 4 81 21512 135.66 796 779 152.8
B 12 111 14770 91.54 796 779 152.8
C 1 16 9334 47.87 769 776 178.8
C 14 67 8513 43.28 769 776 178.8
C 13 61 5944 28.91 769 776 178.8
D 2 216 501348 2687.99 758 736 186.2
D 12 233 142382 760.55 758 736 186.2
D 8 195 66937 355.46 758 736 186.2

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