ASTROSAT CZTI

Data Quality Report

Orbit 38316

Creation date: 2024-06-27T21:51:10.789157
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/AS1C07_001T12_9000005372_38316cztM0_level2.fits modeM0/AS1C07_001T12_9000005372_38316cztM0_level2_quad_clean.evt
Size (bytes)525,844,80083,073,600
Size501.5 MB 79.2 MB
Events in quadrant A2,842,655652,399
Events in quadrant B2,857,726642,528
Events in quadrant C2,559,407640,706
Events in quadrant D10,807,619221,807

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115463
B0118322
C0105452
D0355892

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A510990.176160%
B51091583.092582%
C510950.097867%
D5109327964.180857%

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 7112 5110 4 4 0.06% 0.08%
B 7112 5110 125 125 1.76% 2.45%
C 7112 5110 1 1 0.01% 0.02%
D 7112 5110 3204 3204 45.05% 62.70%

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 370601 3112.46 597 587 118.9
A 11 84 63003 525.03 597 587 118.9
A 12 189 33784 279.24 597 587 118.9
B 5 184 447092 4086.15 584 569 109.3
B 0 189 42521 383.9 584 569 109.3
B 0 186 23719 211.85 584 569 109.3
C 15 214 218114 1598.4 593 598 136.1
C 0 10 10886 75.6 593 598 136.1
C 14 67 6675 44.66 593 598 136.1
D 10 203 6521341 58843.06 449 436 110.8
D 12 235 1063756 9595.14 449 436 110.8
D 2 16 778986 7025.45 449 436 110.8

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