ASTROSAT CZTI

Data Quality Report

Orbit 33293

Creation date: 2024-06-27T20:47:09.193713
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/AS1T04_072T01_9000004780_33293cztM0_level2.evt modeM0/AS1T04_072T01_9000004780_33293cztM0_level2_quad_clean.evt
Size (bytes)573,134,40080,706,240
Size546.6 MB 77.0 MB
Events in quadrant A2,643,687559,305
Events in quadrant B4,030,820534,884
Events in quadrant C4,131,714528,290
Events in quadrant D6,218,271475,358

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0106273
B0151382
C0155252
D0220662

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0310
C0310
D0320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A492560.121827%
B49254449.015228%
C49251653.350254%
D492571214.456853%

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 7048 4926 0 0 0.00% 0.00%
B 7048 4926 328 328 4.65% 6.66%
C 7048 4926 122 122 1.73% 2.48%
D 7048 4926 620 620 8.80% 12.59%

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 13 6 9184 63.49 679 668 134.1
A 15 169 8528 58.6 679 668 134.1
A 13 254 7628 51.89 679 668 134.1
B 5 172 1092608 9166.47 643 629 119.1
B 0 219 322374 2700.84 643 629 119.1
B 15 85 21002 171.02 643 629 119.1
C 10 49 1063278 7460.56 629 637 142.4
C 15 214 217380 1521.7 629 637 142.4
C 0 10 147993 1034.55 629 637 142.4
D 8 195 1666878 11032.3 615 598 151.0
D 12 218 949861 6284.99 615 598 151.0
D 7 223 519903 3438.27 615 598 151.0

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