ASTROSAT CZTI

Data Quality Report

Orbit 18510

Creation date: 2024-06-27T17:51:09.249560
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/AS1A05_212T07_9000002746_18510cztM0_level2.evt modeM0/AS1A05_212T07_9000002746_18510cztM0_level2_quad_clean.evt
Size (bytes)458,844,48083,845,440
Size437.6 MB 80.0 MB
Events in quadrant A3,399,953526,961
Events in quadrant B3,338,708538,437
Events in quadrant C3,263,597517,460
Events in quadrant D3,455,694506,131

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143942
B0141532
C0138602
D0145372

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6447721.116799%
B6447881.364976%
C6447961.489065%
D6447811.256398%

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 7612 6447 11 11 0.14% 0.17%
B 7612 6447 5 5 0.07% 0.08%
C 7612 6447 0 0 0.00% 0.00%
D 7612 6447 8 8 0.11% 0.12%

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 0 13 151160 889.05 840 824 169.1
A 13 254 9334 50.33 840 824 169.1
A 4 2 8184 43.53 840 824 169.1
B 12 111 18356 111.68 841 824 157.0
B 11 111 15751 95.09 841 824 157.0
B 0 230 15745 95.05 841 824 157.0
C 14 238 125168 660.82 804 810 188.2
C 13 61 5701 25.99 804 810 188.2
C 3 233 4010 17.0 804 810 188.2
D 1 52 214510 1089.09 809 787 196.2
D 7 238 74320 374.71 809 787 196.2
D 13 168 65306 328.78 809 787 196.2

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