ASTROSAT CZTI

Data Quality Report

Orbit 32728

Creation date: 2024-06-27T20:41:18.275655
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/AS1A10_123T04_9000004726_32728cztM0_level2.evt modeM0/AS1A10_123T04_9000004726_32728cztM0_level2_quad_clean.evt
Size (bytes)603,244,80082,834,560
Size575.3 MB 79.0 MB
Events in quadrant A3,475,007557,047
Events in quadrant B6,337,740505,789
Events in quadrant C2,969,655558,488
Events in quadrant D5,124,118510,930

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135972
B0225163
C0121891
D0188351

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0290

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5372661.228593%
B5371130924.371625%
C5372450.837677%
D537258810.945644%

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 7466 5373 51 51 0.68% 0.95%
B 7466 5373 886 886 11.87% 16.49%
C 7466 5373 39 39 0.52% 0.73%
D 7466 5373 506 506 6.78% 9.42%

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 15 249 866335 6652.44 661 649 130.1
A 10 228 20953 156.03 661 649 130.1
A 15 237 11833 85.94 661 649 130.1
B 12 1 3709628 33270.73 602 592 111.5
B 12 2 74779 665.47 602 592 111.5
B 0 219 65635 583.45 602 592 111.5
C 0 10 176585 1227.7 634 641 143.3
C 0 207 121601 844.03 634 641 143.3
C 0 239 70729 489.06 634 641 143.3
D 2 250 1106184 7761.23 605 593 142.5
D 7 80 701612 4921.14 605 593 142.5
D 8 195 262628 1839.48 605 593 142.5

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