ASTROSAT CZTI

Data Quality Report

Orbit 43144

Creation date: 2024-06-27T22:48:37.229004
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/AS1A09_107T01_9000005854_43144cztM0_level2.fits modeM0/AS1A09_107T01_9000005854_43144cztM0_level2_quad_clean.evt
Size (bytes)357,528,96090,587,520
Size341.0 MB 86.4 MB
Events in quadrant A3,333,456598,835
Events in quadrant B2,542,747619,673
Events in quadrant C2,543,589607,532
Events in quadrant D4,384,377529,871

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133732
B0114382
C0113302
D0168902

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5525781.411765%
B5526120.217155%
C5526130.235252%
D55264367.889975%

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 7288 5526 47 47 0.64% 0.85%
B 7289 5527 8 8 0.11% 0.14%
C 7289 5527 5 5 0.07% 0.09%
D 7289 5527 375 375 5.14% 6.78%

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 619548 5222.12 572 560 118.5
A 15 237 222935 1876.08 572 560 118.5
A 12 189 138111 1160.46 572 560 118.5
B 0 186 100859 916.93 574 557 109.4
B 0 189 58072 525.78 574 557 109.4
B 0 229 47650 430.51 574 557 109.4
C 15 214 246611 1894.26 563 566 129.9
C 14 254 99170 759.13 563 566 129.9
C 13 61 3962 26.15 563 566 129.9
D 1 52 1705711 12941.29 543 528 131.8
D 12 0 379770 2878.21 543 528 131.8
D 12 233 71225 536.55 543 528 131.8

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