ASTROSAT CZTI

Data Quality Report

Orbit 07352

Creation date: 2024-06-27T15:18:51.566262
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_157T02_9000001008_07352cztM0_level2.evt modeM0/AS1G06_157T02_9000001008_07352cztM0_level2_quad_clean.evt
Size (bytes)442,802,88096,992,640
Size422.3 MB 92.5 MB
Events in quadrant A3,016,524622,468
Events in quadrant B3,159,176643,689
Events in quadrant C3,551,184636,723
Events in quadrant D3,264,279603,866

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131033
B0135462
C0142652
D0140582

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6168570.924125%
B6168420.680934%
C6168460.745785%
D6168891.442931%

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 7498 6169 18 18 0.24% 0.29%
B 7498 6169 2 2 0.03% 0.03%
C 7498 6169 2 2 0.03% 0.03%
D 7498 6169 26 26 0.35% 0.42%

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 15 234 22500 139.71 765 750 155.7
A 14 111 21394 132.61 765 750 155.7
A 15 239 15024 91.69 765 750 155.7
B 0 214 92210 614.98 783 767 148.7
B 12 111 14337 91.26 783 767 148.7
B 7 202 12882 81.48 783 767 148.7
C 9 68 570143 3262.19 760 766 174.5
C 10 22 7823 40.43 760 766 174.5
C 1 16 6900 35.14 760 766 174.5
D 14 34 175669 940.09 752 731 186.1
D 2 216 107784 575.29 752 731 186.1
D 8 195 80106 426.55 752 731 186.1

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