ASTROSAT CZTI

Data Quality Report

Orbit 43028

Creation date: 2024-06-27T22:47:06.655309
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_148T01_9000005838_43028cztM0_level2.fits modeM0/AS1T05_148T01_9000005838_43028cztM0_level2_quad_clean.evt
Size (bytes)391,979,52098,130,240
Size373.8 MB 93.6 MB
Events in quadrant A3,073,762703,432
Events in quadrant B4,325,747654,948
Events in quadrant C2,569,626679,525
Events in quadrant D4,132,406566,321

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124842
B0163052
C0107892
D0159013

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5246230.438429%
B52464859.245139%
C524620.038124%
D52454989.494757%

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 7038 5247 17 17 0.24% 0.32%
B 7038 5247 433 433 6.15% 8.25%
C 7038 5247 0 0 0.00% 0.00%
D 7037 5245 425 425 6.04% 8.10%

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 596160 4474.08 613 603 133.1
A 15 237 96389 719.59 613 603 133.1
A 15 254 7943 55.14 613 603 133.1
B 0 186 1173304 9563.67 599 586 122.6
B 5 255 659792 5375.91 599 586 122.6
B 4 171 57127 461.1 599 586 122.6
C 15 214 231396 1573.41 597 605 146.7
C 15 159 4550 26.89 597 605 146.7
C 13 61 3959 22.87 597 605 146.7
D 1 52 887617 6201.49 557 542 143.0
D 13 249 642005 4484.43 557 542 143.0
D 10 118 242225 1689.59 557 542 143.0

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