ASTROSAT CZTI

Data Quality Report

Orbit 42924

Creation date: 2024-06-27T22:45:51.437506
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/AS1T05_143T01_9000005830_42924cztM0_level2.fits modeM0/AS1T05_143T01_9000005830_42924cztM0_level2_quad_clean.evt
Size (bytes)373,714,56082,687,680
Size356.4 MB 78.9 MB
Events in quadrant A2,899,213579,218
Events in quadrant B2,583,535585,843
Events in quadrant C2,330,359573,043
Events in quadrant D5,645,871427,773

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0116542
B0110304
C098872
D02016516

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0230
C0230
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4812450.935162%
B48111142.369570%
C481230.062344%
D4810101421.081081%

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 6935 4813 28 28 0.40% 0.58%
B 6935 4813 94 94 1.36% 1.95%
C 6935 4813 0 0 0.00% 0.00%
D 6934 4810 1037 1037 14.96% 21.56%

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 10 83 555044 5069.81 533 523 109.4
A 15 222 245854 2242.98 533 523 109.4
A 2 79 19593 174.35 533 523 109.4
B 4 81 432662 4241.69 529 516 101.9
B 5 172 48367 469.68 529 516 101.9
B 4 171 12489 117.52 529 516 101.9
C 15 214 193480 1584.11 532 536 121.8
C 0 207 15139 119.89 532 536 121.8
C 5 250 12770 100.44 532 536 121.8
D 1 47 2209162 19649.69 467 455 112.4
D 12 6 506673 4503.55 467 455 112.4
D 1 52 384594 3417.48 467 455 112.4

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