ASTROSAT CZTI

Data Quality Report

Orbit 03052

Creation date: 2024-06-27T14:24:00.555102
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/AS1G05_238T03_9000000424_03052cztM0_level2.evt modeM0/AS1G05_238T03_9000000424_03052cztM0_level2_quad_clean.evt
Size (bytes)367,827,84044,974,080
Size350.8 MB 42.9 MB
Events in quadrant A2,362,391261,708
Events in quadrant B2,823,257249,011
Events in quadrant C2,401,724252,846
Events in quadrant D3,205,647240,633

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0103573
B0116352
C0105542
D0130442

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0350

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A509160.117855%
B50911813.555294%
C5091110.216068%
D5091450.883913%

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 7247 5092 0 0 0.00% 0.00%
B 7247 5092 170 170 2.35% 3.34%
C 7247 5092 8 8 0.11% 0.16%
D 7247 5092 40 40 0.55% 0.79%

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 50 43693 356.2 595 583 121.0
A 3 1 18011 144.0 595 583 121.0
A 13 251 7126 54.06 595 583 121.0
B 0 230 407807 3600.13 590 578 113.1
B 2 249 64158 562.08 590 578 113.1
B 0 219 22037 189.71 590 578 113.1
C 1 192 66298 500.34 567 572 131.4
C 6 80 64487 486.55 567 572 131.4
C 4 207 12776 92.9 567 572 131.4
D 13 114 795567 5842.36 565 550 136.1
D 2 232 89264 651.93 565 550 136.1
D 2 152 83488 609.49 565 550 136.1

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