ASTROSAT CZTI

Data Quality Report

Orbit 19554

Creation date: 2024-06-27T18:04:00.762988
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_115T02_9000002906_19554cztM0_level2.evt modeM0/AS1A05_115T02_9000002906_19554cztM0_level2_quad_clean.evt
Size (bytes)492,742,08069,883,200
Size469.9 MB 66.6 MB
Events in quadrant A3,276,874434,147
Events in quadrant B3,393,531440,379
Events in quadrant C3,321,775410,627
Events in quadrant D4,505,713393,519

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133733
B0137622
C0135162
D0175182

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6269200.319030%
B6269540.861381%
C6269460.733769%
D62691502.392726%

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 7599 6270 0 0 0.00% 0.00%
B 7599 6270 11 11 0.14% 0.18%
C 7599 6270 0 0 0.00% 0.00%
D 7599 6270 129 129 1.70% 2.06%

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 13 254 8704 46.93 848 835 167.7
A 0 226 7454 39.48 848 835 167.7
A 15 191 6664 34.77 848 835 167.7
B 3 64 68179 430.15 841 822 156.6
B 12 111 18368 112.05 841 822 156.6
B 0 198 17045 103.6 841 822 156.6
C 14 238 127615 690.22 796 805 183.7
C 3 233 47282 252.97 796 805 183.7
C 9 221 25312 133.39 796 805 183.7
D 1 52 1054759 5413.16 801 780 194.7
D 7 238 150480 768.85 801 780 194.7
D 12 225 124115 633.44 801 780 194.7

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