ASTROSAT CZTI

Data Quality Report

Orbit 30803

Creation date: 2024-06-27T20:19:48.375289
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/AS1A10_071T25_9000004450_30803cztM0_level2.evt modeM0/AS1A10_071T25_9000004450_30803cztM0_level2_quad_clean.evt
Size (bytes)587,378,88060,448,320
Size560.2 MB 57.6 MB
Events in quadrant A3,382,031366,097
Events in quadrant B5,157,522364,457
Events in quadrant C3,768,621340,945
Events in quadrant D5,062,929326,999

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134381
B0190001
C0151571
D0192821

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6179450.728273%
B61791191.925878%
C61801392.249191%
D61802153.478964%

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 7514 6180 0 0 0.00% 0.00%
B 7514 6179 8 8 0.11% 0.13%
C 7515 6180 20 20 0.27% 0.32%
D 7515 6180 169 169 2.25% 2.73%

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 13 254 11829 63.28 876 866 173.2
A 3 137 8111 41.82 876 866 173.2
A 0 226 7541 38.53 876 866 173.2
B 6 159 1702613 10525.85 866 850 161.7
B 12 111 19171 113.32 866 850 161.7
B 11 111 17483 102.88 866 850 161.7
C 3 233 281274 1497.96 811 819 187.2
C 0 10 153922 817.75 811 819 187.2
C 14 238 135600 719.89 811 819 187.2
D 8 195 1934588 10046.18 814 799 192.5
D 2 234 24145 121.28 814 799 192.5
D 2 250 19101 95.08 814 799 192.5

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