ASTROSAT CZTI

Data Quality Report

Orbit 07608

Creation date: 2024-06-27T15:21:45.367283
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/AS1G06_117T01_9000001046_07608cztM0_level2.evt modeM0/AS1G06_117T01_9000001046_07608cztM0_level2_quad_clean.evt
Size (bytes)528,235,20097,551,360
Size503.8 MB 93.0 MB
Events in quadrant A3,238,033622,987
Events in quadrant B3,465,931632,277
Events in quadrant C4,177,302616,886
Events in quadrant D4,632,468585,584

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145343
B0149692
C0172202
D0187317

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7130891.248247%
B71301091.528752%
C71302563.590463%
D71284205.892256%

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 8875 7132 0 0 0.00% 0.00%
B 8875 7132 9 9 0.10% 0.13%
C 8875 7130 127 127 1.43% 1.78%
D 8875 7132 299 299 3.37% 4.19%

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 3 1 9459 50.69 837 818 170.4
A 0 226 7853 41.27 837 818 170.4
A 12 194 7574 39.63 837 818 170.4
B 10 247 52509 319.28 843 821 161.9
B 0 219 51360 312.19 843 821 161.9
B 0 229 30105 180.89 843 821 161.9
C 9 68 874494 4642.61 806 811 188.2
C 4 254 129146 681.95 806 811 188.2
C 8 128 15814 79.72 806 811 188.2
D 13 104 1136566 5850.79 795 769 194.1
D 2 136 311177 1598.99 795 769 194.1
D 5 233 62827 319.67 795 769 194.1

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