ASTROSAT CZTI

Data Quality Report

Orbit 05625

Creation date: 2024-06-27T14:57:43.753557
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/AS1G06_132T01_9000000728_05625cztM0_level2.evt modeM0/AS1G06_132T01_9000000728_05625cztM0_level2_quad_clean.evt
Size (bytes)352,765,44066,936,960
Size336.4 MB 63.8 MB
Events in quadrant A2,443,370417,786
Events in quadrant B2,823,015410,513
Events in quadrant C2,402,467408,778
Events in quadrant D2,630,838396,956

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126421109
B0134691342
C0126051187
D0133491376

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01242
B012412
C012414
D012410

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5657140.247481%
B5580460.824373%
C560790.160514%
D5591220.393490%

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 6730 6106 0 0 0.00% 0.00%
B 6730 6093 0 0 0.00% 0.00%
C 6730 6100 0 0 0.00% 0.00%
D 6730 6083 13 13 0.19% 0.21%

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 0 226 6277 43.86 630 615 129.1
A 12 194 6152 42.89 630 615 129.1
A 14 31 4839 32.72 630 615 129.1
B 15 204 215468 1778.91 631 617 120.8
B 0 219 77521 636.75 631 617 120.8
B 11 51 42793 349.21 631 617 120.8
C 1 16 25139 174.91 604 605 140.3
C 8 128 10081 67.56 604 605 140.3
C 8 112 5014 31.43 604 605 140.3
D 2 136 108367 732.01 599 580 147.2
D 10 15 104510 705.82 599 580 147.2
D 12 233 63396 426.6 599 580 147.2

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