ASTROSAT CZTI

Data Quality Report

Orbit 05617

Creation date: 2024-06-27T14:57:16.652362
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/AS1G06_060T01_9000000726_05617cztM0_level2.evt modeM0/AS1G06_060T01_9000000726_05617cztM0_level2_quad_clean.evt
Size (bytes)457,136,64084,816,000
Size436.0 MB 80.9 MB
Events in quadrant A3,018,942541,418
Events in quadrant B3,827,376540,995
Events in quadrant C3,178,573529,508
Events in quadrant D3,385,538511,074

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131972
B0156011
C0136811
D0142521

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63891432.238222%
B63891832.864298%
C63891091.706057%
D63891201.878228%

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 7464 6390 0 0 0.00% 0.00%
B 7464 6390 46 46 0.62% 0.72%
C 7464 6390 12 12 0.16% 0.19%
D 7464 6390 10 10 0.13% 0.16%

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 12 194 7835 44.42 779 761 159.2
A 0 226 7676 43.42 779 761 159.2
A 13 251 7146 40.09 779 761 159.2
B 15 204 405569 2731.9 775 757 148.2
B 4 81 119585 801.91 775 757 148.2
B 4 48 93170 623.65 775 757 148.2
C 1 16 147411 846.53 749 753 173.2
C 14 67 80493 460.27 749 753 173.2
C 9 232 24937 139.59 749 753 173.2
D 2 136 278036 1491.75 759 736 185.9
D 2 152 52642 279.23 759 736 185.9
D 10 15 46951 248.62 759 736 185.9

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