ASTROSAT CZTI

Data Quality Report

Orbit 13679

Creation date: 2024-06-27T16:44:26.102062
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/AS1G08_070T01_9000002028_13679cztM0_level2.evt modeM0/AS1G08_070T01_9000002028_13679cztM0_level2_quad_clean.evt
Size (bytes)439,355,52086,238,720
Size419.0 MB 82.2 MB
Events in quadrant A3,005,859561,750
Events in quadrant B3,175,941597,919
Events in quadrant C3,100,624536,685
Events in quadrant D3,628,471508,691

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122052
B0127471
C0124191
D0143261

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5818540.928154%
B5818751.289103%
C5818360.618769%
D5818701.203163%

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 7089 5820 0 0 0.00% 0.00%
B 7089 5820 5 5 0.07% 0.09%
C 7089 5820 0 0 0.00% 0.00%
D 7089 5820 34 34 0.48% 0.58%

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 1 162 20620 126.58 772 758 156.9
A 0 226 6949 39.46 772 758 156.9
A 1 178 6659 37.61 772 758 156.9
B 0 219 97411 663.48 773 760 145.7
B 3 64 29408 196.66 773 760 145.7
B 12 111 15930 104.14 773 760 145.7
C 3 233 215227 1257.56 740 745 170.6
C 13 61 5326 26.86 740 745 170.6
C 3 202 1749 5.89 740 745 170.6
D 13 122 325788 1838.24 742 724 176.8
D 5 222 194363 1095.03 742 724 176.8
D 8 195 130797 735.57 742 724 176.8

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