ASTROSAT CZTI

Data Quality Report

Orbit 44330

Creation date: 2024-06-27T23:02:15.846272
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/AS1A13_004T09_9000005992_44330cztM0_level2.fits modeM0/AS1A13_004T09_9000005992_44330cztM0_level2_quad_clean.evt
Size (bytes)400,573,44093,928,320
Size382.0 MB 89.6 MB
Events in quadrant A4,010,295642,641
Events in quadrant B3,056,938644,829
Events in quadrant C2,632,765618,113
Events in quadrant D4,699,177552,934

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01188
B01164
C01186
D01197

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121
B0154
C0132
D0143

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016853236
B012860182
C011870195
D017973286

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A55161783.226976%
B55201943.514493%
C55161061.921682%
D55064648.427170%

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 7411 5534 16 16 0.22% 0.29%
B 7411 5535 67 67 0.90% 1.21%
C 7411 5533 19 19 0.26% 0.34%
D 7411 5523 336 336 4.53% 6.08%

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 10 83 1397741 10524.53 642 630 132.7
A 7 3 45435 337.52 642 630 132.7
A 0 243 37134 274.99 642 630 132.7
B 5 172 209487 1717.96 628 610 121.6
B 5 255 100916 824.99 628 610 121.6
B 0 199 75894 619.19 628 610 121.6
C 14 254 132723 911.37 623 627 144.9
C 1 3 62762 428.69 623 627 144.9
C 3 233 4895 29.45 623 627 144.9
D 2 153 714366 4653.95 616 598 153.4
D 13 249 682772 4447.95 616 598 153.4
D 5 171 213289 1386.8 616 598 153.4

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