ASTROSAT CZTI

Data Quality Report

Orbit 22117

Creation date: 2024-06-27T18:37:01.891022
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/AS1A07_007T04_9000003272_22117cztM0_level2.evt modeM0/AS1A07_007T04_9000003272_22117cztM0_level2_quad_clean.evt
Size (bytes)559,863,36073,722,240
Size533.9 MB 70.3 MB
Events in quadrant A3,378,766465,918
Events in quadrant B3,576,373473,326
Events in quadrant C3,346,844442,234
Events in quadrant D6,233,887418,282

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0240
C0240
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137492
B0143472
C0135292
D0227572

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6201410.661184%
B6201911.467505%
C6201741.193356%
D620192614.933075%

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 7541 6202 0 0 0.00% 0.00%
B 7541 6202 23 23 0.30% 0.37%
C 7541 6202 3 3 0.04% 0.05%
D 7541 6202 680 680 9.02% 10.96%

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 13 254 11375 60.47 876 860 173.9
A 0 226 7495 38.16 876 860 173.9
A 3 137 6795 34.13 876 860 173.9
B 3 64 187388 1172.63 862 846 159.1
B 12 111 18592 111.55 862 846 159.1
B 11 111 16596 99.01 862 846 159.1
C 14 238 133162 704.51 816 824 187.8
C 10 22 29161 150.85 816 824 187.8
C 13 61 5730 26.12 816 824 187.8
D 1 52 1354233 7258.15 784 764 186.5
D 2 133 1177782 6311.91 784 764 186.5
D 11 176 648000 3470.89 784 764 186.5

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