ASTROSAT CZTI

Data Quality Report

Orbit 28617

Creation date: 2024-06-27T19:54:03.008499
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/AS1A10_045T06_9000004108_28617cztM0_level2.evt modeM0/AS1A10_045T06_9000004108_28617cztM0_level2_quad_clean.evt
Size (bytes)502,934,40076,504,320
Size479.6 MB 73.0 MB
Events in quadrant A3,209,222484,288
Events in quadrant B3,343,004488,070
Events in quadrant C3,270,557475,352
Events in quadrant D5,011,397459,377

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128671
B0133151
C0130601
D0192911

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5857931.587844%
B58581141.946057%
C58581292.202117%
D58582945.018778%

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 7147 5857 1 1 0.01% 0.02%
B 7148 5858 22 22 0.31% 0.38%
C 7148 5858 5 5 0.07% 0.09%
D 7148 5858 217 217 3.04% 3.70%

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 4 208 28498 169.66 822 808 163.2
A 13 254 9973 56.16 822 808 163.2
A 15 47 8715 48.45 822 808 163.2
B 10 245 120767 804.37 802 786 149.2
B 10 246 42977 282.86 802 786 149.2
B 12 111 17790 114.0 802 786 149.2
C 14 238 129905 706.47 789 796 182.8
C 7 247 51394 276.87 789 796 182.8
C 3 233 13129 67.48 789 796 182.8
D 1 52 1120272 5959.26 792 775 187.9
D 8 195 704350 3745.24 792 775 187.9
D 2 250 89402 471.78 792 775 187.9

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