ASTROSAT CZTI

Data Quality Report

Orbit 27295

Creation date: 2024-06-27T19:38:32.679132
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/AS1T03_243T01_9000003918_27295cztM0_level2.evt modeM0/AS1T03_243T01_9000003918_27295cztM0_level2_quad_clean.evt
Size (bytes)496,281,60075,297,600
Size473.3 MB 71.8 MB
Events in quadrant A3,329,827464,115
Events in quadrant B3,696,489470,145
Events in quadrant C3,331,759447,174
Events in quadrant D4,221,455435,675

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139240
B0148210
C0139790
D0168730

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6633550.829187%
B6634841.266204%
C66341101.658125%
D66341642.472113%

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 7673 6633 0 0 0.00% 0.00%
B 7674 6634 3 3 0.04% 0.05%
C 7674 6634 0 0 0.00% 0.00%
D 7674 6634 99 99 1.29% 1.49%

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 10050 53.33 862 845 172.6
A 3 137 7922 41.0 862 845 172.6
A 0 226 7298 37.38 862 845 172.6
B 7 205 278168 1708.47 857 837 162.3
B 0 190 22397 132.82 857 837 162.3
B 12 111 19943 117.7 857 837 162.3
C 14 238 134366 700.19 819 826 190.7
C 13 61 5671 25.4 819 826 190.7
C 15 208 4265 18.03 819 826 190.7
D 1 52 929884 4772.55 821 803 194.7
D 12 233 73510 373.48 821 803 194.7
D 2 250 43421 218.92 821 803 194.7

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