ASTROSAT CZTI

Data Quality Report

Orbit 02982

Creation date: 2024-06-27T14:23:02.861739
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/AS1G05_238T05_9000000418_02982cztM0_level2.evt modeM0/AS1G05_238T05_9000000418_02982cztM0_level2_quad_clean.evt
Size (bytes)473,230,08078,226,560
Size451.3 MB 74.6 MB
Events in quadrant A3,959,671500,382
Events in quadrant B2,868,887518,419
Events in quadrant C2,630,866501,066
Events in quadrant D4,517,111481,798

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153203
B0119622
C0114052
D0170292

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A52352584.928367%
B52351172.234957%
C5235951.814709%
D52352414.603629%

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 7390 5236 175 175 2.37% 3.34%
B 7390 5236 108 108 1.46% 2.06%
C 7390 5236 77 77 1.04% 1.47%
D 7390 5236 253 253 3.42% 4.83%

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 9 1215548 10420.65 579 568 116.6
A 14 63 434249 3719.6 579 568 116.6
A 0 31 25609 214.77 579 568 116.6
B 3 11 295304 2618.37 593 580 112.6
B 0 219 53056 466.2 593 580 112.6
B 3 27 41939 367.44 593 580 112.6
C 1 192 281206 2136.44 569 572 131.4
C 6 80 68300 515.61 569 572 131.4
C 10 21 11282 81.53 569 572 131.4
D 13 114 1457967 10697.14 568 554 136.2
D 1 31 622772 4566.96 568 554 136.2
D 13 239 97553 711.95 568 554 136.2

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