ASTROSAT CZTI

Data Quality Report

Orbit 06587

Creation date: 2024-06-27T15:09:06.390687
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_169T01_9000000886_06587cztM0_level2.evt modeM0/AS1G06_169T01_9000000886_06587cztM0_level2_quad_clean.evt
Size (bytes)461,280,96081,397,440
Size439.9 MB 77.6 MB
Events in quadrant A3,058,809515,220
Events in quadrant B3,244,036522,821
Events in quadrant C2,886,440510,053
Events in quadrant D4,351,861476,277

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133283
B0137432
C0130642
D0173182

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63041392.204949%
B6304961.522843%
C6304510.809010%
D63042874.552665%

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 7429 6306 33 33 0.44% 0.52%
B 7429 6306 3 3 0.04% 0.05%
C 7429 6306 1 1 0.01% 0.02%
D 7429 6306 218 218 2.93% 3.46%

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 14 111 130168 856.33 747 730 151.2
A 8 15 30708 198.33 747 730 151.2
A 0 226 7178 42.66 747 730 151.2
B 0 219 103549 713.15 753 736 144.2
B 4 81 101431 698.46 753 736 144.2
B 0 198 57148 391.29 753 736 144.2
C 9 54 46806 272.38 723 727 169.2
C 1 16 13556 75.83 723 727 169.2
C 13 61 5600 28.8 723 727 169.2
D 2 33 1277607 7208.73 719 695 177.1
D 2 152 104683 587.06 719 695 177.1
D 2 136 79932 447.33 719 695 177.1

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