ASTROSAT CZTI

Data Quality Report

Orbit 42059

Creation date: 2024-06-27T22:36:20.141800
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/AS1A12_037T03_9000005738_42059cztM0_level2.fits modeM0/AS1A12_037T03_9000005738_42059cztM0_level2_quad_clean.evt
Size (bytes)385,240,32098,352,000
Size367.4 MB 93.8 MB
Events in quadrant A3,443,804660,894
Events in quadrant B2,750,532676,021
Events in quadrant C2,808,373641,757
Events in quadrant D4,786,065575,272

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137425
B0124282
C0121762
D0183942

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6062170.280435%
B6062240.395909%
C606220.032992%
D60622694.437479%

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 8929 6064 5 5 0.06% 0.08%
B 8929 6064 14 14 0.16% 0.23%
C 8929 6064 0 0 0.00% 0.00%
D 8929 6064 291 291 3.26% 4.80%

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 623476 4510.15 668 654 138.1
A 15 223 166585 1201.59 668 654 138.1
A 12 189 36036 256.22 668 654 138.1
B 5 255 74773 572.3 663 644 129.5
B 15 85 27583 207.98 663 644 129.5
B 3 112 21296 159.44 663 644 129.5
C 15 214 256447 1664.8 651 654 153.6
C 12 249 8163 48.87 651 654 153.6
C 13 61 4372 24.2 651 654 153.6
D 1 52 1589449 10034.96 641 623 158.3
D 12 6 240105 1512.56 641 623 158.3
D 13 249 187943 1183.11 641 623 158.3

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