ASTROSAT CZTI

Data Quality Report

Orbit 29576

Creation date: 2024-06-27T20:05:39.064625
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/AS1A10_093T01_9000004266_29576cztM0_level2.evt modeM0/AS1A10_093T01_9000004266_29576cztM0_level2_quad_clean.evt
Size (bytes)450,354,24070,623,360
Size429.5 MB 67.4 MB
Events in quadrant A2,417,721466,766
Events in quadrant B3,214,069470,014
Events in quadrant C2,717,774429,696
Events in quadrant D4,942,593414,102

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0105141
B0127591
C0113741
D0181661

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A51051282.507346%
B51051753.428012%
C510565112.752204%
D51054719.226249%

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 5490 5106 0 0 0.00% 0.00%
B 5490 5106 11 11 0.20% 0.22%
C 5490 5106 0 0 0.00% 0.00%
D 5490 5106 384 384 6.99% 7.52%

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 13 254 9938 73.48 622 607 127.0
A 0 13 7140 51.44 622 607 127.0
A 3 137 6439 45.92 622 607 127.0
B 0 189 696138 5792.06 618 600 120.1
B 0 190 35047 286.86 618 600 120.1
B 0 156 22861 185.38 618 600 120.1
C 14 238 254639 1903.32 566 569 133.5
C 14 254 229920 1718.15 566 569 133.5
C 2 114 11240 79.94 566 569 133.5
D 12 33 1745537 12399.58 587 571 140.7
D 13 104 341446 2422.23 587 571 140.7
D 7 80 280025 1985.78 587 571 140.7

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