ASTROSAT CZTI

Data Quality Report

Orbit 06600

Creation date: 2024-06-27T15:09:15.055537
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_028T01_9000000890_06600cztM0_level2.evt modeM0/AS1G06_028T01_9000000890_06600cztM0_level2_quad_clean.evt
Size (bytes)575,573,76069,886,080
Size548.9 MB 66.6 MB
Events in quadrant A3,134,425430,234
Events in quadrant B3,343,013436,672
Events in quadrant C4,028,085415,796
Events in quadrant D6,499,105393,126

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131563
B0137702
C0160212
D0237302

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6314310.490972%
B6314681.076972%
C63142564.054482%
D63143455.464048%

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 7674 6315 0 0 0.00% 0.00%
B 7674 6315 10 10 0.13% 0.16%
C 7674 6315 194 194 2.53% 3.07%
D 7674 6315 259 259 3.38% 4.10%

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 21382 126.84 807 792 162.3
A 0 226 7681 42.44 807 792 162.3
A 12 194 7517 41.43 807 792 162.3
B 4 81 115391 742.49 815 798 154.3
B 0 219 49782 317.38 815 798 154.3
B 12 111 15575 95.74 815 798 154.3
C 9 247 950948 5290.78 780 787 179.6
C 3 9 19787 105.8 780 787 179.6
C 1 16 7870 39.44 780 787 179.6
D 8 195 2736631 14721.54 764 742 185.8
D 13 105 383314 2058.58 764 742 185.8
D 2 63 322535 1731.53 764 742 185.8

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