ASTROSAT CZTI

Data Quality Report

Orbit 10016

Creation date: 2024-06-27T15:53:46.577724
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/AS1G07_022T02_9000001434_10016cztM0_level2.evt modeM0/AS1G07_022T02_9000001434_10016cztM0_level2_quad_clean.evt
Size (bytes)387,987,84080,421,120
Size370.0 MB 76.7 MB
Events in quadrant A2,639,818517,955
Events in quadrant B2,833,234536,848
Events in quadrant C2,571,206529,951
Events in quadrant D3,330,838465,361

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130101435
B0133431328
C0127161272
D0163172843

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0212
B0211
C0210
D0222

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012410
B01248
C01248
D012414

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5495601.091902%
B5564661.186197%
C5549280.504595%
D5340921.722846%

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 7503 5971 0 0 0.00% 0.00%
B 7503 5999 2 2 0.03% 0.03%
C 7503 6004 1 1 0.01% 0.02%
D 7503 5817 47 47 0.63% 0.81%

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 8 15 42860 312.05 669 655 135.2
A 15 239 17506 124.59 669 655 135.2
A 13 251 6980 46.77 669 655 135.2
B 0 219 101768 784.29 686 672 128.9
B 4 239 17369 129.53 686 672 128.9
B 12 111 13203 97.21 686 672 128.9
C 14 67 6035 35.52 657 661 151.3
C 13 61 4948 28.34 657 661 151.3
C 14 234 3926 21.58 657 661 151.3
D 8 195 384783 2422.37 617 602 158.6
D 2 16 286174 1800.61 617 602 158.6
D 7 71 123789 776.73 617 602 158.6

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