ASTROSAT CZTI

Data Quality Report

Orbit 22018

Creation date: 2024-06-27T18:35:23.906572
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/AS1A07_059T05_9000003252_22018cztM0_level2.evt modeM0/AS1A07_059T05_9000003252_22018cztM0_level2_quad_clean.evt
Size (bytes)228,623,04032,797,440
Size218.0 MB 31.3 MB
Events in quadrant A1,515,417205,706
Events in quadrant B1,571,859209,487
Events in quadrant C1,479,164198,665
Events in quadrant D2,166,086179,251

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0580
B0580
C0580
D0580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A061161
B063001
C059991
D082281

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2788622.223816%
B2788933.335725%
C2788873.120516%
D27882579.218077%

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 3813 2789 0 0 0.00% 0.00%
B 3813 2788 5 5 0.13% 0.18%
C 3813 2788 0 0 0.00% 0.00%
D 3813 2788 189 189 4.96% 6.78%

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 3 1 34509 434.28 383 374 78.6
A 13 254 5231 61.79 383 374 78.6
A 0 226 3461 39.27 383 374 78.6
B 3 64 55173 734.16 378 369 74.6
B 0 219 11949 155.13 378 369 74.6
B 0 230 10656 137.81 378 369 74.6
C 14 238 56308 643.08 363 365 87.0
C 0 10 5805 62.53 363 365 87.0
C 13 61 2528 24.86 363 365 87.0
D 1 52 520155 5933.41 358 348 87.6
D 7 238 169970 1936.17 358 348 87.6
D 7 38 48520 549.87 358 348 87.6

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