ASTROSAT CZTI

Data Quality Report

Orbit 44044

Creation date: 2024-06-27T22:58:41.243128
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_025T01_9000005936_44044cztM0_level2.fits modeM0/AS1A13_025T01_9000005936_44044cztM0_level2_quad_clean.evt
Size (bytes)406,261,44091,281,600
Size387.4 MB 87.1 MB
Events in quadrant A3,789,006601,463
Events in quadrant B2,923,546613,230
Events in quadrant C2,783,996617,899
Events in quadrant D5,090,593525,681

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157000
B0125700
C0123770
D0192370

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58012364.068264%
B58022414.153740%
C5802771.327129%
D58025639.703550%

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 5801 5801 12 12 0.21% 0.21%
B 5802 5802 10 10 0.17% 0.17%
C 5802 5802 10 10 0.17% 0.17%
D 5802 5802 344 344 5.93% 5.93%

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 988898 7017.21 670 655 140.8
A 14 238 121293 856.61 670 655 140.8
A 15 223 36108 251.74 670 655 140.8
B 0 200 106269 792.98 667 644 133.2
B 0 213 39033 288.21 667 644 133.2
B 2 2 28525 209.32 667 644 133.2
C 14 254 100261 633.52 662 664 157.2
C 3 233 27291 169.37 662 664 157.2
C 12 249 23635 146.11 662 664 157.2
D 1 52 1167337 7171.09 638 618 162.7
D 5 235 498490 3060.11 638 618 162.7
D 5 222 316884 1943.89 638 618 162.7

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