ASTROSAT CZTI

Data Quality Report

Orbit 38909

Creation date: 2024-06-27T21:58:02.412513
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_064T01_9000005416_38909cztM0_level2.fits modeM0/AS1T05_064T01_9000005416_38909cztM0_level2_quad_clean.evt
Size (bytes)366,756,48097,130,880
Size349.8 MB 92.6 MB
Events in quadrant A3,013,300662,806
Events in quadrant B2,485,661675,132
Events in quadrant C2,968,048651,589
Events in quadrant D4,698,513582,432

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122783
B0108502
C0121052
D0176602

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5279380.719833%
B5279140.265202%
C5279180.340974%
D52792815.322978%

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 7222 5280 36 36 0.50% 0.68%
B 7222 5280 10 10 0.14% 0.19%
C 7222 5280 11 11 0.15% 0.21%
D 7222 5280 286 286 3.96% 5.42%

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 416313 3414.93 607 593 121.7
A 13 248 199226 1631.67 607 593 121.7
A 12 16 24387 195.46 607 593 121.7
B 5 172 38413 332.47 606 590 113.8
B 0 155 15146 127.95 606 590 113.8
B 12 111 13529 113.74 606 590 113.8
C 14 254 350544 2510.9 603 608 139.4
C 15 214 231323 1655.45 603 608 139.4
C 0 10 12700 86.76 603 608 139.4
D 12 227 592752 4180.15 593 576 141.7
D 12 235 560198 3950.36 593 576 141.7
D 2 249 260153 1832.35 593 576 141.7

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