ASTROSAT CZTI

Data Quality Report

Orbit 06095

Creation date: 2024-06-27T15:02:41.908810
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_033T01_9000000792_06095cztM0_level2.evt modeM0/AS1G06_033T01_9000000792_06095cztM0_level2_quad_clean.evt
Size (bytes)515,954,88072,728,640
Size492.1 MB 69.4 MB
Events in quadrant A5,442,667426,345
Events in quadrant B3,585,832447,846
Events in quadrant C3,044,766443,127
Events in quadrant D3,101,733421,265

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0206752
B0150121
C0136371
D0139571

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66512573.864081%
B66511111.668922%
C6651240.360848%
D6651350.526237%

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 7776 6652 86 86 1.11% 1.29%
B 7776 6652 68 68 0.87% 1.02%
C 7776 6652 1 1 0.01% 0.02%
D 7776 6652 12 12 0.15% 0.18%

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 2380001 14968.26 776 759 159.0
A 0 50 66948 416.41 776 759 159.0
A 12 194 7621 43.17 776 759 159.0
B 3 64 379922 2504.6 794 777 151.4
B 15 204 36402 235.34 794 777 151.4
B 0 219 31070 200.11 794 777 151.4
C 1 16 31659 171.62 771 774 180.0
C 13 61 6227 30.3 771 774 180.0
C 9 16 6135 29.79 771 774 180.0
D 2 33 48701 251.69 766 741 190.6
D 8 195 43716 225.53 766 741 190.6
D 5 97 30082 153.98 766 741 190.6

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