ASTROSAT CZTI

Data Quality Report

Orbit 19379

Creation date: 2024-06-27T18:02:26.453410
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/AS1C04_009T04_9000002866_19379cztM0_level2.evt modeM0/AS1C04_009T04_9000002866_19379cztM0_level2_quad_clean.evt
Size (bytes)680,014,080111,464,640
Size648.5 MB 106.3 MB
Events in quadrant A2,794,266819,973
Events in quadrant B2,911,207819,443
Events in quadrant C2,744,257776,886
Events in quadrant D11,754,732555,710

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120151
B0122891
C0118171
D0388741

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5751390.678143%
B5752560.973574%
C5752420.730181%
D5752372964.829624%

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 6951 5751 0 0 0.00% 0.00%
B 6952 5753 26 26 0.37% 0.45%
C 6952 5753 0 0 0.00% 0.00%
D 6951 5751 3485 3485 50.14% 60.60%

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 12 96 7413 46.82 719 706 143.3
A 13 254 6399 39.74 719 706 143.3
A 0 226 6349 39.39 719 706 143.3
B 7 220 59976 450.3 705 691 131.7
B 15 32 36729 273.73 705 691 131.7
B 4 216 16366 119.06 705 691 131.7
C 14 238 108509 693.31 675 679 155.5
C 13 61 4628 25.39 675 679 155.5
C 3 233 2442 11.34 675 679 155.5
D 10 66 7620959 58186.17 538 520 131.0
D 7 238 1538453 11742.95 538 520 131.0
D 12 218 238227 1815.02 538 520 131.0

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