ASTROSAT CZTI

Data Quality Report

Orbit 20231102_A13_018T01_9000005906_level2

Creation date: 2023-11-09T17:46:28.529810
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/AS1A13_018T01_9000005906cztM0_level2.fits modeM0/AS1A13_018T01_9000005906cztM0_level2_quad_clean.evt
Size (bytes)2,788,954,5602,822,857,920
Size2.6 GB 2.6 GB
Events in quadrant A16,806,32017,342,116
Events in quadrant B16,706,76818,113,165
Events in quadrant C15,723,35215,037,324
Events in quadrant D13,285,00213,130,452

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010450820
B08366670
C012985450
D012962130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A064750
B064780
C064780
D064780

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03880
B03880
C03880
D03880

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A319225305439.567860%
B319239166615.218974%
C3191426403020.063169%
D3192196538220.481864%

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 362889 318945 0 0 0.00% 0.00%
B 362888 319131 0 0 0.00% 0.00%
C 362888 318445 0 0 0.00% 0.00%
D 362888 318076 0 0 0.00% 0.00%

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 7 110 13913 8.93 4401 4116 1097.2
A 0 29 13695 8.73 4401 4116 1097.2
A 0 30 12785 7.9 4401 4116 1097.2
B 2 9 14989 12.38 4426 4203 871.3
B 3 17 12106 9.07 4426 4203 871.3
B 2 8 11850 8.78 4426 4203 871.3
C 1 81 12116 7.73 4168 3879 1065.5
C 3 202 11993 7.62 4168 3879 1065.5
C 1 80 11987 7.61 4168 3879 1065.5
D 7 3 9827 5.96 3846 3484 1064.5
D 10 189 9801 5.93 3846 3484 1064.5
D 6 67 9729 5.87 3846 3484 1064.5

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