ASTROSAT CZTI

Data Quality Report

Orbit 10007

Creation date: 2024-06-27T15:53:35.836155
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/AS1G07_002T02_9000001432_10007cztM0_level2.evt modeM0/AS1G07_002T02_9000001432_10007cztM0_level2_quad_clean.evt
Size (bytes)439,113,60073,175,040
Size418.8 MB 69.8 MB
Events in quadrant A2,906,038458,304
Events in quadrant B2,847,668466,308
Events in quadrant C2,723,187458,522
Events in quadrant D4,399,777400,147

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016825
B017042
C016938
D017046

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0169864154
B0170664259
C0168294149
D0242567309

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A054
B040
C041
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6269981.563248%
B62241041.670951%
C6243520.832933%
D58672945.011079%

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 8642 7241 0 0 0.00% 0.00%
B 8642 7257 0 0 0.00% 0.00%
C 8642 7274 0 0 0.00% 0.00%
D 8642 6951 171 171 1.98% 2.46%

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 8 15 108289 726.77 718 700 148.0
A 13 14 26248 172.58 718 700 148.0
A 0 226 6498 39.17 718 700 148.0
B 4 81 33295 233.08 713 694 139.9
B 0 219 16140 110.43 713 694 139.9
B 12 111 15990 109.36 713 694 139.9
C 13 61 5155 27.43 695 699 162.4
C 14 128 4474 23.24 695 699 162.4
C 14 67 3923 19.85 695 699 162.4
D 8 195 430166 2640.69 638 622 162.7
D 1 52 401861 2466.68 638 622 162.7
D 12 110 395149 2425.42 638 622 162.7

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