ASTROSAT CZTI

Data Quality Report

Orbit 19683

Creation date: 2024-06-27T18:05:31.967846
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/AS1A05_221T01_9000002936_19683cztM0_level2.evt modeM0/AS1A05_221T01_9000002936_19683cztM0_level2_quad_clean.evt
Size (bytes)476,671,68099,858,240
Size454.6 MB 95.2 MB
Events in quadrant A3,154,510647,855
Events in quadrant B3,483,178671,590
Events in quadrant C3,411,202647,546
Events in quadrant D3,957,404615,637

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133741
B0144541
C0140811
D0159911

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6329290.458208%
B63291201.896034%
C6329891.406225%
D63291472.322642%

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 8694 6330 2 2 0.02% 0.03%
B 8694 6330 34 34 0.39% 0.54%
C 8694 6330 1 1 0.01% 0.02%
D 8694 6331 105 105 1.21% 1.66%

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 5 16 17261 101.24 815 799 162.6
A 0 226 7038 38.37 815 799 162.6
A 3 137 6255 33.56 815 799 162.6
B 3 112 216081 1412.02 816 796 152.5
B 4 216 30253 193.2 816 796 152.5
B 7 220 20976 132.36 816 796 152.5
C 14 238 125784 671.64 799 807 186.1
C 3 233 106492 567.96 799 807 186.1
C 7 247 36509 191.87 799 807 186.1
D 1 52 848628 4454.31 794 774 190.3
D 2 16 33838 173.71 794 774 190.3
D 1 20 25795 131.45 794 774 190.3

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