ASTROSAT CZTI

Data Quality Report

Orbit 13069

Creation date: 2024-06-27T16:36:10.415780
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/AS1A04_176T02_9000001924_13069cztM0_level2.evt modeM0/AS1A04_176T02_9000001924_13069cztM0_level2_quad_clean.evt
Size (bytes)27,457,9208,510,400
Size26.2 MB 8.1 MB
Events in quadrant A196,44153,912
Events in quadrant B207,78756,367
Events in quadrant C181,05056,635
Events in quadrant D214,84653,593

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A08401
B08760
C08240
D08630

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A41100.000000%
B41161.459854%
C41100.000000%
D41100.000000%

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 412 412 0 0 0.00% 0.00%
B 412 412 3 3 0.73% 0.73%
C 412 412 0 0 0.00% 0.00%
D 412 412 1 1 0.24% 0.24%

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 12 189 9722 832.0 47 46 11.6
A 1 162 2094 176.1 47 46 11.6
A 1 178 893 72.83 47 46 11.6
B 4 239 17986 1594.3 47 46 11.3
B 0 219 2810 245.63 47 46 11.3
B 0 214 1369 117.57 47 46 11.3
C 13 61 353 23.48 46 46 13.1
C 3 202 150 7.95 46 46 13.1
C 1 5 134 6.73 46 46 13.1
D 1 52 28567 2194.96 45 44 13.0
D 10 157 13959 1070.82 45 44 13.0
D 2 234 1410 105.12 45 44 13.0

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