ASTROSAT CZTI

Data Quality Report

Orbit 41006

Creation date: 2024-06-27T22:23:47.968170
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/AS1A12_042T01_9000005588_41006cztM0_level2.fits modeM0/AS1A12_042T01_9000005588_41006cztM0_level2_quad_clean.evt
Size (bytes)316,428,48091,834,560
Size301.8 MB 87.6 MB
Events in quadrant A3,010,181613,426
Events in quadrant B2,478,094636,844
Events in quadrant C2,702,656596,396
Events in quadrant D3,086,663543,130

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122153
B0112372
C0115922
D0129872

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0270

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5586110.196921%
B558680.143215%
C5586200.358038%
D55861132.022914%

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 7228 5587 4 4 0.06% 0.07%
B 7228 5587 0 0 0.00% 0.00%
C 7228 5587 15 15 0.21% 0.27%
D 7228 5587 101 101 1.40% 1.81%

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 552110 4331.29 616 602 127.3
A 12 189 71776 558.97 616 602 127.3
A 13 254 8508 62.09 616 602 127.3
B 0 186 45206 374.89 614 598 119.0
B 12 111 15152 122.31 614 598 119.0
B 11 111 13689 110.02 614 598 119.0
C 15 214 243687 1741.91 596 598 139.6
C 12 249 60380 428.38 596 598 139.6
C 0 10 47418 335.5 596 598 139.6
D 13 249 358599 2506.76 592 576 142.8
D 12 233 137008 955.25 592 576 142.8
D 2 153 119586 833.27 592 576 142.8

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