ASTROSAT CZTI

Data Quality Report

Orbit 18411

Creation date: 2024-06-27T17:49:25.641292
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/AS1A05_227T06_9000002730_18411cztM0_level2.evt modeM0/AS1A05_227T06_9000002730_18411cztM0_level2_quad_clean.evt
Size (bytes)543,945,60075,893,760
Size518.7 MB 72.4 MB
Events in quadrant A3,319,934477,132
Events in quadrant B5,119,421470,231
Events in quadrant C3,365,269459,924
Events in quadrant D4,232,719441,654

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137572
B0195642
C0138512
D0168562

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6439380.590154%
B64394997.749651%
C6439661.025004%
D64391101.708340%

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 7769 6440 0 0 0.00% 0.00%
B 7769 6440 288 288 3.71% 4.47%
C 7769 6440 3 3 0.04% 0.05%
D 7769 6440 51 51 0.66% 0.79%

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 15 174 48923 286.07 843 827 168.1
A 4 2 24817 142.69 843 827 168.1
A 0 226 7509 39.74 843 827 168.1
B 10 245 1829196 11867.24 824 805 154.1
B 12 111 17288 106.98 824 805 154.1
B 11 111 15148 93.09 824 805 154.1
C 14 238 127635 670.36 809 816 189.2
C 0 207 70655 369.17 809 816 189.2
C 3 233 14104 70.24 809 816 189.2
D 8 230 456544 2342.03 807 785 194.6
D 1 52 432008 2215.94 807 785 194.6
D 12 110 138682 708.62 807 785 194.6

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