ASTROSAT CZTI

Data Quality Report

Orbit 07306

Creation date: 2024-06-27T15:18:16.360520
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_137T02_9000001002_07306cztM0_level2.evt modeM0/AS1G06_137T02_9000001002_07306cztM0_level2_quad_clean.evt
Size (bytes)548,853,12072,748,800
Size523.4 MB 69.4 MB
Events in quadrant A3,443,346460,978
Events in quadrant B3,137,950477,115
Events in quadrant C3,079,108473,282
Events in quadrant D6,526,506343,501

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146042
B0136741
C0134571
D0238071

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64061392.169841%
B6406410.640025%
C6406460.718077%
D6406124519.434905%

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 7521 6406 67 67 0.89% 1.05%
B 7521 6406 4 4 0.05% 0.06%
C 7521 6406 15 15 0.20% 0.23%
D 7521 6406 1166 1166 15.50% 18.20%

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 15 234 394681 2532.66 764 747 155.5
A 8 15 68314 434.4 764 747 155.5
A 13 248 12031 72.55 764 747 155.5
B 0 214 72445 479.65 780 763 149.4
B 12 111 14406 91.29 780 763 149.4
B 0 229 12159 76.25 780 763 149.4
C 9 68 101340 568.07 759 764 177.0
C 1 16 10796 56.66 759 764 177.0
C 10 22 7581 38.5 759 764 177.0
D 1 239 2998440 18287.21 663 644 163.9
D 2 216 520752 3172.77 663 644 163.9
D 2 33 221783 1349.0 663 644 163.9

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