ASTROSAT CZTI

Data Quality Report

Orbit 06950

Creation date: 2024-06-27T15:13:40.536410
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/AS1A02_165T06_9000000952_06950cztM0_level2.evt modeM0/AS1A02_165T06_9000000952_06950cztM0_level2_quad_clean.evt
Size (bytes)331,352,64068,958,720
Size316.0 MB 65.8 MB
Events in quadrant A2,285,604437,483
Events in quadrant B2,698,565436,789
Events in quadrant C2,256,095435,877
Events in quadrant D2,448,907422,453

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0102850
B0114610
C0102460
D0107010

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A506930.059183%
B50691022.012231%
C506910.019728%
D5069120.236733%

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 5069 5069 0 0 0.00% 0.00%
B 5069 5069 84 84 1.66% 1.66%
C 5069 5069 0 0 0.00% 0.00%
D 5069 5069 9 9 0.18% 0.18%

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 0 226 5645 41.72 592 579 121.4
A 12 194 5321 39.05 592 579 121.4
A 13 14 2909 19.19 592 579 121.4
B 0 219 338904 3007.38 587 573 112.5
B 0 228 58434 514.32 587 573 112.5
B 12 111 11182 94.3 587 573 112.5
C 13 61 4660 30.54 577 580 133.6
C 10 22 1613 7.73 577 580 133.6
C 7 247 1437 6.41 577 580 133.6
D 8 195 143478 997.14 577 560 143.3
D 2 152 32725 224.42 577 560 143.3
D 2 14 29113 199.21 577 560 143.3

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