ASTROSAT CZTI

Data Quality Report

Orbit 06328

Creation date: 2024-06-27T15:05:43.923774
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_028T01_9000000834_06328cztM0_level2.evt modeM0/AS1G06_028T01_9000000834_06328cztM0_level2_quad_clean.evt
Size (bytes)614,113,92087,652,800
Size585.7 MB 83.6 MB
Events in quadrant A3,005,143576,030
Events in quadrant B3,958,581567,639
Events in quadrant C3,191,175564,907
Events in quadrant D8,011,310499,244

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133472
B0160781
C0139161
D0284161

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6401380.593657%
B64012714.233713%
C6401590.921731%
D640175211.748164%

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 7036 6402 3 3 0.04% 0.05%
B 7036 6402 176 176 2.50% 2.75%
C 7036 6402 51 51 0.72% 0.80%
D 7036 6402 702 702 9.98% 10.97%

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 8 15 48172 308.27 752 738 153.9
A 13 251 31155 197.68 752 738 153.9
A 14 111 16103 99.86 752 738 153.9
B 3 64 926758 6518.0 745 731 142.1
B 4 81 98926 691.16 745 731 142.1
B 15 204 25024 170.99 745 731 142.1
C 4 254 337404 1996.41 727 733 168.6
C 9 16 9288 50.73 727 733 168.6
C 13 61 5824 30.19 727 733 168.6
D 12 221 3814859 21952.66 706 685 173.7
D 12 220 1136900 6539.54 706 685 173.7
D 2 63 199165 1142.36 706 685 173.7

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