ASTROSAT CZTI

Data Quality Report

Orbit 44357

Creation date: 2024-06-27T23:02:36.404942
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/AS1A13_008T06_9000005994_44357cztM0_level2.fits modeM0/AS1A13_008T06_9000005994_44357cztM0_level2_quad_clean.evt
Size (bytes)551,934,720103,014,720
Size526.4 MB 98.2 MB
Events in quadrant A7,138,051686,026
Events in quadrant B3,422,250733,325
Events in quadrant C3,108,169703,927
Events in quadrant D6,294,839574,791

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0255231
B0140722
C0132021
D0228931

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60335138.503232%
B60321883.116711%
C6032741.226790%
D603293915.566976%

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 7188 6033 297 297 4.13% 4.92%
B 7187 6032 71 71 0.99% 1.18%
C 7187 6033 19 19 0.26% 0.31%
D 7187 6032 788 788 10.96% 13.06%

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 15 223 2134483 14351.97 715 701 148.7
A 10 83 1522700 10237.07 715 701 148.7
A 13 248 645109 4334.33 715 701 148.7
B 5 172 304544 2174.61 722 704 139.7
B 0 219 68406 484.55 722 704 139.7
B 4 170 59378 419.93 722 704 139.7
C 14 254 184807 1113.58 703 710 165.3
C 2 14 114426 687.85 703 710 165.3
C 3 233 24518 144.01 703 710 165.3
D 13 249 1783172 10653.83 664 643 167.3
D 5 235 361521 2156.9 664 643 167.3
D 2 153 314113 1873.55 664 643 167.3

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