ASTROSAT CZTI

Data Quality Report

Orbit 41995

Creation date: 2024-06-27T22:35:30.003122
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/AS1T05_132T01_9000005730_41995cztM0_level2.fits modeM0/AS1T05_132T01_9000005730_41995cztM0_level2_quad_clean.evt
Size (bytes)405,429,12090,794,880
Size386.6 MB 86.6 MB
Events in quadrant A2,917,479612,823
Events in quadrant B2,451,928633,677
Events in quadrant C2,452,140610,636
Events in quadrant D6,776,855523,036

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118432
B0108943
C0105792
D0238652

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0340
C0340
D0340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A527190.170746%
B5270210.398482%
C527030.056926%
D52704147.855787%

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 7274 5272 5 5 0.07% 0.09%
B 7273 5271 10 10 0.14% 0.19%
C 7273 5271 0 0 0.00% 0.00%
D 7273 5271 356 356 4.89% 6.75%

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 542280 4579.82 581 570 118.3
A 2 79 119712 1007.27 581 570 118.3
A 3 137 6306 48.49 581 570 118.3
B 0 190 61594 541.8 581 565 112.6
B 5 255 38581 337.5 581 565 112.6
B 0 186 24789 215.06 581 565 112.6
C 15 214 220091 1654.12 569 573 132.7
C 8 229 9522 67.43 569 573 132.7
C 13 61 3869 24.84 569 573 132.7
D 1 52 4030004 30214.58 544 528 133.4
D 2 249 213302 1595.46 544 528 133.4
D 13 249 138879 1037.41 544 528 133.4

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