ASTROSAT CZTI

Data Quality Report

Orbit 28716

Creation date: 2024-06-27T19:55:17.873633
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_123T03_9000004120_28716cztM0_level2.evt modeM0/AS1A10_123T03_9000004120_28716cztM0_level2_quad_clean.evt
Size (bytes)499,092,480102,496,320
Size476.0 MB 97.7 MB
Events in quadrant A3,313,922683,483
Events in quadrant B3,361,272691,579
Events in quadrant C3,345,206652,820
Events in quadrant D4,651,901621,208

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136942
B0138502
C0138182
D0181462

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6524440.674433%
B6524671.026977%
C65241001.532802%
D65243335.104231%

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 7734 6524 0 0 0.00% 0.00%
B 7734 6524 4 4 0.05% 0.06%
C 7734 6524 2 2 0.03% 0.03%
D 7734 6524 312 312 4.03% 4.78%

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 13 254 11189 60.83 857 843 170.1
A 3 137 7696 40.3 857 843 170.1
A 0 226 7402 38.57 857 843 170.1
B 12 111 19204 115.91 843 822 158.6
B 10 247 17881 107.57 843 822 158.6
B 11 111 17272 103.73 843 822 158.6
C 14 238 145122 771.58 808 814 187.0
C 14 254 19636 100.64 808 814 187.0
C 3 233 15751 79.86 808 814 187.0
D 1 52 843029 4491.33 802 782 187.5
D 8 195 362570 1929.26 802 782 187.5
D 12 233 278399 1480.41 802 782 187.5

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