ASTROSAT CZTI

Data Quality Report

Orbit 45748

Creation date: 2024-06-27T23:15:43.134123
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/AS1T05_183T01_9000006124_45748cztM0_level2.fits modeM0/AS1T05_183T01_9000006124_45748cztM0_level2_quad_clean.evt
Size (bytes)569,833,920112,824,000
Size543.4 MB 107.6 MB
Events in quadrant A6,202,776758,044
Events in quadrant B5,959,485756,097
Events in quadrant C3,913,712759,937
Events in quadrant D4,514,834689,410

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0224652
B0222662
C0158992
D0176532

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64922804.313001%
B64926389.827480%
C64922543.912508%
D64922804.313001%

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 7637 6493 8 8 0.10% 0.12%
B 7637 6493 387 387 5.07% 5.96%
C 7637 6493 157 157 2.06% 2.42%
D 7637 6493 172 172 2.25% 2.65%

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 10 83 2981866 18142.0 791 774 164.3
A 13 248 130732 790.88 791 774 164.3
A 4 0 13683 78.56 791 774 164.3
B 3 112 2544636 17070.06 773 752 149.0
B 0 183 80624 535.96 773 752 149.0
B 5 172 69996 464.64 773 752 149.0
C 14 254 643190 3545.35 775 781 181.2
C 12 2 166432 914.2 775 781 181.2
C 12 249 40991 221.91 775 781 181.2
D 1 52 813666 4160.23 776 753 195.4
D 13 249 464921 2375.46 776 753 195.4
D 2 249 94437 479.44 776 753 195.4

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