ASTROSAT CZTI

Data Quality Report

Orbit 29900

Creation date: 2024-06-27T20:08:55.529572
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_102T04_9000004286_29900cztM0_level2.evt modeM0/AS1A10_102T04_9000004286_29900cztM0_level2_quad_clean.evt
Size (bytes)452,148,48063,420,480
Size431.2 MB 60.5 MB
Events in quadrant A2,467,461393,781
Events in quadrant B3,939,562394,401
Events in quadrant C4,257,630384,377
Events in quadrant D2,673,917380,975

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0105820
B0157050
C0163040
D0110810

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5235300.573066%
B5236400.763942%
C52362244.278075%
D5236310.592055%

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 5235 5235 0 0 0.00% 0.00%
B 5236 5236 0 0 0.00% 0.00%
C 5236 5236 48 48 0.92% 0.92%
D 5236 5236 8 8 0.15% 0.15%

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 15 174 11520 85.05 636 622 128.1
A 13 254 8937 64.9 636 622 128.1
A 3 137 6479 45.71 636 622 128.1
B 6 159 1447818 11796.9 627 609 122.7
B 0 229 30919 247.07 627 609 122.7
B 12 111 15103 118.15 627 609 122.7
C 3 233 1692326 11857.49 605 608 142.7
C 14 238 102865 716.73 605 608 142.7
C 15 208 70023 486.54 605 608 142.7
D 8 195 190867 1273.65 619 603 149.4
D 2 250 58712 388.99 619 603 149.4
D 7 238 49393 326.61 619 603 149.4

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