ASTROSAT CZTI

Data Quality Report

Orbit 19205

Creation date: 2024-06-27T18:00:02.676948
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_046T01_9000002838_19205cztM0_level2.evt modeM0/AS1A05_046T01_9000002838_19205cztM0_level2_quad_clean.evt
Size (bytes)494,556,48071,409,600
Size471.6 MB 68.1 MB
Events in quadrant A3,230,178434,463
Events in quadrant B3,319,389445,118
Events in quadrant C4,286,981423,248
Events in quadrant D3,713,409419,429

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137452
B0139332
C0173662
D0153212

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6303600.951928%
B6304661.046954%
C63041702.696701%
D63041322.093909%

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 8583 6304 0 0 0.00% 0.00%
B 8584 6305 1 1 0.01% 0.02%
C 8584 6305 7 7 0.08% 0.11%
D 8584 6305 61 61 0.71% 0.97%

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 9669 53.11 836 820 166.6
A 0 226 7339 39.13 836 820 166.6
A 14 235 7308 38.94 836 820 166.6
B 0 190 20373 124.08 837 820 157.6
B 12 111 18346 111.22 837 820 157.6
B 11 111 16047 96.63 837 820 157.6
C 3 233 1017848 5502.17 799 804 184.8
C 14 238 125923 676.89 799 804 184.8
C 0 207 27781 145.94 799 804 184.8
D 12 16 479889 2463.68 810 788 194.5
D 9 68 87533 446.07 810 788 194.5
D 7 96 35399 177.98 810 788 194.5

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