ASTROSAT CZTI

Data Quality Report

Orbit 38812

Creation date: 2024-06-27T21:56:46.580957
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_061T07_9000005402_38812cztM0_level2.fits modeM0/AS1A12_061T07_9000005402_38812cztM0_level2_quad_clean.evt
Size (bytes)335,900,16087,120,000
Size320.3 MB 83.1 MB
Events in quadrant A2,997,126585,061
Events in quadrant B2,338,106609,256
Events in quadrant C2,568,642576,594
Events in quadrant D4,130,986508,357

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0410
B0410
C0410
D0410

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120293
B0103362
C0106102
D0159092

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5124290.565964%
B512490.175644%
C512460.117096%
D51242885.620609%

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 9220 5126 29 29 0.31% 0.57%
B 9220 5126 0 0 0.00% 0.00%
C 9220 5126 6 6 0.07% 0.12%
D 9220 5126 221 221 2.40% 4.31%

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 382712 3255.47 577 565 117.4
A 13 248 340479 2895.69 577 565 117.4
A 12 16 25875 215.61 577 565 117.4
B 0 230 29776 258.13 577 560 113.2
B 4 170 16242 138.55 577 560 113.2
B 12 111 14137 119.95 577 560 113.2
C 15 214 231812 1722.14 571 573 134.3
C 0 239 74008 546.9 571 573 134.3
C 15 159 13950 99.62 571 573 134.3
D 2 249 663155 4887.74 552 537 135.6
D 2 16 543026 4001.62 552 537 135.6
D 12 235 311900 2296.74 552 537 135.6

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