ASTROSAT CZTI

Data Quality Report

Orbit 47356

Creation date: 2024-07-01T12:10:39.192516
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/AS1A13_093T17_9000006322_47356cztM0_level2.fits modeM0/AS1A13_093T17_9000006322_47356cztM0_level2_quad_clean.evt
Size (bytes)555,618,240105,589,440
Size529.9 MB 100.7 MB
Events in quadrant A7,463,870688,775
Events in quadrant B5,947,785638,622
Events in quadrant C3,194,364727,490
Events in quadrant D3,442,679676,402

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0267282
B0224442
C0141302
D0150442

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66796589.851774%
B6679121718.221291%
C6679721.078006%
D66791482.215901%

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 7674 6679 281 281 3.66% 4.21%
B 7673 6678 811 811 10.57% 12.14%
C 7674 6679 7 7 0.09% 0.10%
D 7674 6679 64 64 0.83% 0.96%

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 10 83 3857171 23858.86 765 747 161.6
A 15 235 378309 2335.89 765 747 161.6
A 9 191 246374 1519.64 765 747 161.6
B 0 186 2857687 20039.53 715 694 142.6
B 0 190 137304 958.21 715 694 142.6
B 0 198 27312 186.7 715 694 142.6
C 12 2 145489 803.77 763 767 180.1
C 12 249 53467 292.69 763 767 180.1
C 3 233 14511 76.33 763 767 180.1
D 14 49 117674 597.76 770 746 195.6
D 11 192 80080 405.57 770 746 195.6
D 2 249 78774 398.9 770 746 195.6

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