ASTROSAT CZTI

Data Quality Report

Orbit 41002

Creation date: 2024-06-27T22:23:13.000563
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_101T01_9000005586_41002cztM0_level2.fits modeM0/AS1T05_101T01_9000005586_41002cztM0_level2_quad_clean.evt
Size (bytes)340,050,24097,462,080
Size324.3 MB 92.9 MB
Events in quadrant A3,096,389644,813
Events in quadrant B2,639,601662,613
Events in quadrant C2,897,229639,189
Events in quadrant D3,484,452582,747

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130063
B0123412
C0125902
D0149282

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A603090.149254%
B6030210.348259%
C6030190.315091%
D60301382.288557%

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 7342 6031 4 4 0.05% 0.07%
B 7341 6030 7 7 0.10% 0.12%
C 7341 6030 13 13 0.18% 0.22%
D 7342 6031 140 140 1.91% 2.32%

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 573118 4309.03 642 625 132.9
A 12 189 27614 203.14 642 625 132.9
A 13 252 11706 83.4 642 625 132.9
B 5 255 65806 522.9 642 625 124.7
B 0 186 25924 202.95 642 625 124.7
B 12 111 16005 123.38 642 625 124.7
C 15 214 260970 1771.34 629 632 147.0
C 14 254 107832 729.39 629 632 147.0
C 0 10 48180 323.52 629 632 147.0
D 13 249 770960 5094.09 621 603 151.2
D 2 249 160365 1056.45 621 603 151.2
D 12 233 72927 478.25 621 603 151.2

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