ASTROSAT CZTI

Data Quality Report

Orbit 43128

Creation date: 2024-06-27T22:48:23.865457
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_006T07_9000005852_43128cztM0_level2.fits modeM0/AS1A09_006T07_9000005852_43128cztM0_level2_quad_clean.evt
Size (bytes)390,444,48085,242,240
Size372.4 MB 81.3 MB
Events in quadrant A5,327,486548,672
Events in quadrant B2,982,235598,822
Events in quadrant C2,469,541563,204
Events in quadrant D3,277,455512,787

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0270
C0270
D0270

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0194412
B0122822
C0103822
D0131462

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A509754710.731803%
B5097500.980969%
C509730.058858%
D50971292.530901%

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 7220 5098 402 402 5.57% 7.89%
B 7220 5098 14 14 0.19% 0.27%
C 7220 5098 0 0 0.00% 0.00%
D 7220 5098 102 102 1.41% 2.00%

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 15 222 1892566 16482.14 560 549 114.8
A 10 83 572786 4984.99 560 549 114.8
A 15 237 434578 3781.01 560 549 114.8
B 0 186 531720 4724.5 574 560 112.4
B 0 229 85073 751.72 574 560 112.4
B 5 255 59555 524.74 574 560 112.4
C 15 214 214587 1628.06 561 565 131.5
C 0 239 30425 227.14 561 565 131.5
C 3 233 14124 103.14 561 565 131.5
D 1 52 842812 6110.66 559 544 137.8
D 13 249 162991 1178.55 559 544 137.8
D 13 171 51977 373.14 559 544 137.8

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