ASTROSAT CZTI

Data Quality Report

Orbit 07167

Creation date: 2024-06-27T15:16:26.679257
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/AS1G06_102T01_9000000978_07167cztM0_level2.evt modeM0/AS1G06_102T01_9000000978_07167cztM0_level2_quad_clean.evt
Size (bytes)396,578,88060,160,320
Size378.2 MB 57.4 MB
Events in quadrant A2,980,566358,238
Events in quadrant B2,529,740374,772
Events in quadrant C2,828,080364,230
Events in quadrant D3,304,467345,998

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124383
B0110881
C0121601
D0132651

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A53912073.839733%
B5392881.632047%
C53921272.355341%
D53921993.690653%

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 6162 5392 80 80 1.30% 1.48%
B 6163 5393 0 0 0.00% 0.00%
C 6163 5393 55 55 0.89% 1.02%
D 6163 5393 100 100 1.62% 1.85%

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 14 238 508581 3963.28 623 609 128.2
A 8 15 53642 413.77 623 609 128.2
A 14 239 14710 110.02 623 609 128.2
B 4 81 30013 238.44 633 615 123.3
B 0 214 19289 151.46 633 615 123.3
B 12 111 12841 99.16 633 615 123.3
C 4 254 412743 2913.61 608 611 141.5
C 7 247 19373 132.64 608 611 141.5
C 9 68 18579 127.03 608 611 141.5
D 2 216 490824 3292.36 603 583 148.9
D 8 195 231271 1549.26 603 583 148.9
D 2 14 124990 835.49 603 583 148.9

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