ASTROSAT CZTI

Data Quality Report

Orbit 23186

Creation date: 2024-06-27T18:51:01.351110
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/AS1A08_003T05_9000003426_23186cztM0_level2.evt modeM0/AS1A08_003T05_9000003426_23186cztM0_level2_quad_clean.evt
Size (bytes)593,628,48064,837,440
Size566.1 MB 61.8 MB
Events in quadrant A3,519,339383,591
Events in quadrant B3,686,024387,003
Events in quadrant C4,133,178369,684
Events in quadrant D6,190,745360,508

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147122
B0151832
C0165602
D0229095

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6625781.177358%
B6625871.313208%
C66252603.924528%
D662471910.854469%

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 7795 6625 0 0 0.00% 0.00%
B 7795 6625 0 0 0.00% 0.00%
C 7795 6625 88 88 1.13% 1.33%
D 7793 6623 483 483 6.20% 7.29%

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 6 16 24244 129.52 907 889 180.3
A 13 254 9892 49.93 907 889 180.3
A 0 226 7892 38.84 907 889 180.3
B 0 190 89639 522.3 900 878 169.9
B 0 229 55219 319.76 900 878 169.9
B 12 111 19540 109.81 900 878 169.9
C 0 10 291856 1451.51 866 874 200.5
C 7 247 146023 724.05 866 874 200.5
C 14 238 138066 684.35 866 874 200.5
D 1 52 1427968 6823.83 855 832 209.1
D 7 238 732263 3497.32 855 832 209.1
D 12 233 607126 2898.98 855 832 209.1

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