ASTROSAT CZTI

Data Quality Report

Orbit 33009

Creation date: 2024-06-27T20:44:23.990583
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/AS1A11_080T01_9000004756_33009cztM0_level2.evt modeM0/AS1A11_080T01_9000004756_33009cztM0_level2_quad_clean.evt
Size (bytes)525,525,12083,759,040
Size501.2 MB 79.9 MB
Events in quadrant A2,717,099547,865
Events in quadrant B3,563,568540,447
Events in quadrant C3,425,655541,015
Events in quadrant D5,802,340487,637

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120423
B0144142
C0140332
D0214632

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A600140.066656%
B60012604.332611%
C60011742.899517%
D60014697.815364%

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 8657 6003 0 0 0.00% 0.00%
B 8657 6003 159 159 1.84% 2.65%
C 8657 6003 127 127 1.47% 2.12%
D 8657 6003 511 511 5.90% 8.51%

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 6 14887 99.96 698 685 142.1
A 13 254 11042 72.9 698 685 142.1
A 3 137 6504 40.96 698 685 142.1
B 5 172 744241 5651.07 687 671 131.6
B 0 229 33437 249.02 687 671 131.6
B 5 200 19923 146.31 687 671 131.6
C 7 221 389439 2494.91 668 676 155.8
C 0 10 343288 2198.74 668 676 155.8
C 1 241 37103 233.77 668 676 155.8
D 7 223 1668843 9551.46 655 641 174.7
D 8 195 705213 4034.1 655 641 174.7
D 2 120 245166 1400.05 655 641 174.7

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