ASTROSAT CZTI

Data Quality Report

Orbit 06527

Creation date: 2024-06-27T15:08:25.842251
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_136T02_9000000876_06527cztM0_level2.evt modeM0/AS1G06_136T02_9000000876_06527cztM0_level2_quad_clean.evt
Size (bytes)426,634,560100,719,360
Size406.9 MB 96.1 MB
Events in quadrant A3,200,691652,010
Events in quadrant B3,344,539670,343
Events in quadrant C2,966,763655,693
Events in quadrant D2,964,273616,598

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139773
B0143422
C0134312
D0135732

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6535190.290742%
B6535831.270084%
C6535110.168324%
D6535210.321347%

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 7870 6536 0 0 0.00% 0.00%
B 7870 6536 32 32 0.41% 0.49%
C 7870 6536 0 0 0.00% 0.00%
D 7870 6536 12 12 0.15% 0.18%

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 15 236 192538 1218.74 778 764 157.4
A 8 15 11320 67.08 778 764 157.4
A 0 226 7402 42.18 778 764 157.4
B 4 48 140125 939.84 789 774 148.3
B 4 80 50597 336.03 789 774 148.3
B 4 81 47857 317.55 789 774 148.3
C 12 4 11194 59.92 757 761 174.1
C 13 61 5949 29.79 757 761 174.1
C 14 67 3948 18.3 757 761 174.1
D 6 112 36791 196.94 744 721 183.2
D 2 152 21565 113.81 744 721 183.2
D 2 234 18744 98.4 744 721 183.2

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