ASTROSAT CZTI

Data Quality Report

Orbit 16210

Creation date: 2024-06-27T17:19:22.094934
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/AS1T02_109T01_9000002386_16210cztM0_level2.evt modeM0/AS1T02_109T01_9000002386_16210cztM0_level2_quad_clean.evt
Size (bytes)434,407,68076,878,720
Size414.3 MB 73.3 MB
Events in quadrant A3,073,878489,703
Events in quadrant B3,110,046499,457
Events in quadrant C2,990,579472,246
Events in quadrant D3,593,970467,677

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124262
B0124561
C0121071
D0141231

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5705751.314636%
B5705791.384750%
C5705661.156880%
D57052053.593339%

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 7001 5707 20 20 0.29% 0.35%
B 7001 5707 17 17 0.24% 0.30%
C 7001 5707 0 0 0.00% 0.00%
D 7001 5707 132 132 1.89% 2.31%

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 4 2 153502 1002.24 760 746 152.4
A 0 226 6986 40.94 760 746 152.4
A 12 194 5707 32.55 760 746 152.4
B 0 189 112210 789.8 747 732 141.1
B 0 198 43571 303.51 747 732 141.1
B 15 201 22466 153.98 747 732 141.1
C 14 238 113224 682.13 716 722 164.9
C 3 233 43023 256.48 716 722 164.9
C 7 247 21920 128.53 716 722 164.9
D 1 52 356116 2015.49 726 706 176.3
D 15 0 330630 1870.96 726 706 176.3
D 2 233 142583 804.57 726 706 176.3

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