ASTROSAT CZTI

Data Quality Report

Orbit 44011

Creation date: 2024-06-27T22:58:15.311627
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_037T01_9000005930_44011cztM0_level2.fits modeM0/AS1A13_037T01_9000005930_44011cztM0_level2_quad_clean.evt
Size (bytes)375,909,120102,686,400
Size358.5 MB 97.9 MB
Events in quadrant A3,927,881679,252
Events in quadrant B2,950,536714,816
Events in quadrant C2,975,541687,286
Events in quadrant D3,593,910608,805

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157481
B0126961
C0129871
D0149021

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60031352.248876%
B6004991.648901%
C6003520.866234%
D60031762.931867%

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 7153 6005 13 13 0.18% 0.22%
B 7154 6006 3 3 0.04% 0.05%
C 7153 6005 10 10 0.14% 0.17%
D 7153 6005 84 84 1.17% 1.40%

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 1023997 7072.89 694 680 144.7
A 14 238 178742 1230.72 694 680 144.7
A 7 3 26104 175.72 694 680 144.7
B 0 213 89090 638.53 701 679 138.5
B 4 170 20756 145.0 701 679 138.5
B 4 173 17796 123.62 701 679 138.5
C 14 254 237641 1469.15 686 688 161.3
C 3 233 50359 307.97 686 688 161.3
C 12 16 10462 60.6 686 688 161.3
D 1 52 605923 3569.98 674 653 169.5
D 5 222 83131 486.47 674 653 169.5
D 13 249 68080 397.7 674 653 169.5

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