ASTROSAT CZTI

Data Quality Report

Orbit 22043

Creation date: 2024-06-27T18:35:44.426450
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/AS1A07_134T01_9000003256_22043cztM0_level2.evt modeM0/AS1A07_134T01_9000003256_22043cztM0_level2_quad_clean.evt
Size (bytes)277,079,04046,393,920
Size264.2 MB 44.2 MB
Events in quadrant A1,864,481293,001
Events in quadrant B1,955,535299,748
Events in quadrant C1,875,256286,316
Events in quadrant D2,452,076272,603

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0720
B0720
C0720
D0720

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A076681
B080001
C078481
D095481

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3568110.308296%
B3568140.392377%
C3568340.952915%
D35681574.400224%

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 3568 3568 0 0 0.00% 0.00%
B 3568 3568 0 0 0.00% 0.00%
C 3568 3568 0 0 0.00% 0.00%
D 3568 3568 144 144 4.04% 4.04%

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 13 254 5145 48.13 484 476 97.0
A 0 226 4241 38.81 484 476 97.0
A 3 137 3854 34.82 484 476 97.0
B 3 64 22257 240.32 480 470 90.7
B 0 197 19554 210.51 480 470 90.7
B 0 230 17030 182.67 480 470 90.7
C 14 238 74360 698.43 458 462 105.8
C 10 22 13706 125.17 458 462 105.8
C 13 61 3085 24.79 458 462 105.8
D 11 176 543001 4912.49 458 445 110.4
D 1 52 106954 964.37 458 445 110.4
D 2 136 54733 491.54 458 445 110.4

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