ASTROSAT CZTI

Data Quality Report

Orbit 31029

Creation date: 2024-06-27T20:22:29.123915
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/AS1A10_071T54_9000004482_31029cztM0_level2.evt modeM0/AS1A10_071T54_9000004482_31029cztM0_level2_quad_clean.evt
Size (bytes)607,262,40068,915,520
Size579.1 MB 65.7 MB
Events in quadrant A2,495,646458,376
Events in quadrant B4,087,206452,955
Events in quadrant C2,559,760436,903
Events in quadrant D8,887,861364,518

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0108171
B0160961
C0109011
D0301841

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5316520.978179%
B5317921.730299%
C5317831.561031%
D5317206038.743652%

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 6211 5316 0 0 0.00% 0.00%
B 6212 5317 8 8 0.13% 0.15%
C 6211 5316 1 1 0.02% 0.02%
D 6211 5316 2296 2296 36.97% 43.19%

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 11 47 11442 82.4 643 631 131.2
A 13 254 10353 74.1 643 631 131.2
A 3 137 6568 45.25 643 631 131.2
B 6 159 1479353 12008.67 633 617 123.1
B 0 190 48782 391.14 633 617 123.1
B 0 230 17936 140.65 633 617 123.1
C 14 238 96992 656.95 615 618 146.7
C 1 16 14459 94.35 615 618 146.7
C 0 10 14254 92.95 615 618 146.7
D 12 218 5971275 44377.2 561 547 134.5
D 8 195 549771 4082.09 561 547 134.5
D 2 250 185427 1374.11 561 547 134.5

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