ASTROSAT CZTI

Data Quality Report

Orbit 42188

Creation date: 2024-06-27T22:38:16.715832
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_088T24_9000005768_42188cztM0_level2.fits modeM0/AS1A12_088T24_9000005768_42188cztM0_level2_quad_clean.evt
Size (bytes)334,005,12088,162,560
Size318.5 MB 84.1 MB
Events in quadrant A3,004,350593,458
Events in quadrant B2,595,095612,394
Events in quadrant C2,536,286577,316
Events in quadrant D3,801,144502,744

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123342
B0115983
C0110522
D0153672

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360
B0360
C0360
D0360

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5477150.273873%
B5477210.383422%
C547730.054775%
D54773265.952164%

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 9092 5479 11 11 0.12% 0.20%
B 9092 5479 8 8 0.09% 0.15%
C 9092 5479 0 0 0.00% 0.00%
D 9092 5478 306 306 3.37% 5.59%

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 535562 4365.65 593 581 122.5
A 15 223 164316 1336.14 593 581 122.5
A 3 137 6500 48.3 593 581 122.5
B 5 255 122770 1056.56 593 573 115.7
B 0 229 121216 1043.12 593 573 115.7
B 15 35 23664 199.65 593 573 115.7
C 15 214 233657 1703.5 581 587 136.8
C 0 207 12527 87.27 581 587 136.8
C 14 67 8868 60.53 581 587 136.8
D 1 52 409098 2984.83 556 538 136.9
D 7 55 288327 2102.51 556 538 136.9
D 13 249 219311 1598.3 556 538 136.9

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