ASTROSAT CZTI

Data Quality Report

Orbit 13907

Creation date: 2024-06-27T16:47:43.080387
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/AS1A04_010T02_9000002048_13907cztM0_level2.evt modeM0/AS1A04_010T02_9000002048_13907cztM0_level2_quad_clean.evt
Size (bytes)823,400,64087,099,840
Size785.3 MB 83.1 MB
Events in quadrant A3,142,083671,596
Events in quadrant B3,236,017675,561
Events in quadrant C3,181,765667,961
Events in quadrant D14,943,884174,552

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135563
B0138362
C0136252
D0487762

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6388540.845335%
B6388550.860989%
C6388450.704446%
D6388577590.403882%

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 7549 6389 0 0 0.00% 0.00%
B 7549 6389 2 2 0.03% 0.03%
C 7549 6389 0 0 0.00% 0.00%
D 7548 6388 5432 5432 71.97% 85.03%

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 9 143 16251 93.41 807 791 165.5
A 1 162 14488 82.76 807 791 165.5
A 0 226 7168 38.53 807 791 165.5
B 4 173 41244 265.31 799 781 152.5
B 0 189 28705 183.09 799 781 152.5
B 12 111 17479 109.49 799 781 152.5
C 3 233 112225 611.3 787 791 182.3
C 13 61 5519 25.93 787 791 182.3
C 12 4 3210 13.27 787 791 182.3
D 13 122 13356900 192042.78 291 285 69.6
D 1 52 344930 4955.34 291 285 69.6
D 13 189 42903 612.77 291 285 69.6

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