ASTROSAT CZTI

Data Quality Report

Orbit 40623

Creation date: 2024-06-27T22:18:21.459549
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/AS1A12_011T59_9000005552_40623cztM0_level2.fits modeM0/AS1A12_011T59_9000005552_40623cztM0_level2_quad_clean.evt
Size (bytes)313,116,48084,551,040
Size298.6 MB 80.6 MB
Events in quadrant A2,946,418585,953
Events in quadrant B3,126,582600,905
Events in quadrant C2,498,512572,612
Events in quadrant D2,599,287424,472

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119533
B0127882
C0109022
D0114122

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5369410.763643%
B5369631.173403%
C5369110.204880%
D5369116621.717266%

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 7163 5370 32 32 0.45% 0.60%
B 7163 5370 45 45 0.63% 0.84%
C 7163 5370 9 9 0.13% 0.17%
D 7163 5370 18 18 0.25% 0.34%

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 497362 4174.13 582 570 119.0
A 12 189 159166 1332.55 582 570 119.0
A 2 79 36176 299.17 582 570 119.0
B 0 190 324847 2886.96 575 559 112.3
B 0 229 286178 2542.71 575 559 112.3
B 5 255 92333 817.01 575 559 112.3
C 15 214 234068 1783.3 565 568 130.9
C 0 10 48903 369.15 565 568 130.9
C 12 249 7563 53.42 565 568 130.9
D 12 191 289694 2420.43 487 472 119.5
D 2 250 186935 1560.47 487 472 119.5
D 12 227 60339 501.01 487 472 119.5

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