ASTROSAT CZTI

Data Quality Report

Orbit 16415

Creation date: 2024-06-27T17:22:21.607155
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_069T01_9000002424_16415cztM0_level2.evt modeM0/AS1A05_069T01_9000002424_16415cztM0_level2_quad_clean.evt
Size (bytes)484,925,76067,855,680
Size462.5 MB 64.7 MB
Events in quadrant A3,235,703410,360
Events in quadrant B4,085,567418,231
Events in quadrant C3,376,195392,612
Events in quadrant D3,548,314380,847

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135423
B0162112
C0137762
D0148262

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6492681.047443%
B64922644.066543%
C6492851.309304%
D64921121.725200%

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 7753 6494 0 0 0.00% 0.00%
B 7753 6494 123 123 1.59% 1.89%
C 7753 6494 0 0 0.00% 0.00%
D 7753 6494 53 53 0.68% 0.82%

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 15 223 10527 58.38 838 822 166.2
A 0 226 7396 39.54 838 822 166.2
A 12 194 6061 31.51 838 822 166.2
B 0 229 422992 2688.24 838 819 157.0
B 4 173 111042 701.86 838 819 157.0
B 10 16 104390 659.5 838 819 157.0
C 14 238 123542 666.55 797 803 184.1
C 3 233 119974 647.18 797 803 184.1
C 7 247 15775 81.31 797 803 184.1
D 12 218 347316 1795.83 797 773 193.0
D 15 0 75780 388.7 797 773 193.0
D 1 20 34496 174.76 797 773 193.0

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