ASTROSAT CZTI

Data Quality Report

Orbit 08319

Creation date: 2024-06-27T15:30:54.923399
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_093T01_9000001156_08319cztM0_level2.evt modeM0/AS1A03_093T01_9000001156_08319cztM0_level2_quad_clean.evt
Size (bytes)411,805,44068,587,200
Size392.7 MB 65.4 MB
Events in quadrant A3,039,722409,799
Events in quadrant B3,103,852419,729
Events in quadrant C2,864,277409,183
Events in quadrant D3,029,796392,964

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133142
B0132751
C0128801
D0135531

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6376510.799875%
B6376170.266625%
C637650.078419%
D6376540.846926%

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 7496 6376 15 15 0.20% 0.24%
B 7496 6377 0 0 0.00% 0.00%
C 7496 6377 0 0 0.00% 0.00%
D 7496 6377 45 45 0.60% 0.71%

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 15 239 128809 834.08 749 733 153.6
A 13 251 14222 87.85 749 733 153.6
A 15 223 8093 47.93 749 733 153.6
B 0 214 57097 390.0 761 744 144.5
B 4 81 34228 231.73 761 744 144.5
B 0 231 26395 177.52 761 744 144.5
C 13 61 5726 29.19 733 735 171.0
C 8 128 4153 19.99 733 735 171.0
C 8 112 2235 8.77 733 735 171.0
D 1 52 130603 664.78 719 707 195.4
D 2 14 102064 518.72 719 707 195.4
D 12 221 38954 195.74 719 707 195.4

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