ASTROSAT CZTI

Data Quality Report

Orbit 43355

Creation date: 2024-06-27T22:50:56.739664
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/AS1A09_143T01_9000005870_43355cztM0_level2.fits modeM0/AS1A09_143T01_9000005870_43355cztM0_level2_quad_clean.evt
Size (bytes)378,060,48088,816,320
Size360.5 MB 84.7 MB
Events in quadrant A3,016,638604,434
Events in quadrant B2,734,164616,904
Events in quadrant C2,602,010597,012
Events in quadrant D5,220,365491,951

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0230
C0230
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123472
B0118992
C0111902
D0192402

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5415370.683287%
B5415530.978763%
C541570.129271%
D541476714.166975%

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 7177 5416 17 17 0.24% 0.31%
B 7177 5416 35 35 0.49% 0.65%
C 7177 5416 4 4 0.06% 0.07%
D 7176 5415 579 579 8.07% 10.69%

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 589464 4849.6 594 582 121.4
A 15 237 86248 705.48 594 582 121.4
A 13 248 26747 215.48 594 582 121.4
B 0 189 188306 1641.78 589 571 114.3
B 5 172 120967 1052.89 589 571 114.3
B 5 255 47641 411.63 589 571 114.3
C 15 214 222461 1620.63 585 587 136.9
C 3 233 79370 575.45 585 587 136.9
C 2 16 13573 94.85 585 587 136.9
D 1 52 2791756 20854.08 551 535 133.8
D 12 218 69459 514.95 551 535 133.8
D 12 233 65638 486.4 551 535 133.8

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