ASTROSAT CZTI

Data Quality Report

Orbit 22046

Creation date: 2024-06-27T18:35:52.012052
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_047T09_9000003260_22046cztM0_level2.evt modeM0/AS1A07_047T09_9000003260_22046cztM0_level2_quad_clean.evt
Size (bytes)476,933,760136,477,440
Size454.8 MB 130.2 MB
Events in quadrant A3,171,396946,943
Events in quadrant B3,374,940958,086
Events in quadrant C3,175,417910,155
Events in quadrant D4,294,215878,606

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133681
B0139151
C0133431
D0170471

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63001001.587302%
B63011362.158388%
C63011372.174258%
D63013515.570544%

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 7530 6300 0 0 0.00% 0.00%
B 7531 6301 8 8 0.11% 0.13%
C 7531 6301 0 0 0.00% 0.00%
D 7530 6300 276 276 3.67% 4.38%

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 13 254 9932 55.94 822 808 163.1
A 0 226 7056 38.3 822 808 163.1
A 3 137 6382 34.17 822 808 163.1
B 3 64 91329 600.68 814 796 150.7
B 0 190 39893 259.4 814 796 150.7
B 0 197 30609 197.81 814 796 150.7
C 14 238 126571 710.07 777 784 177.1
C 10 22 9307 48.11 777 784 177.1
C 9 54 6262 30.92 777 784 177.1
D 12 233 824242 4410.31 778 755 186.7
D 11 176 169950 906.15 778 755 186.7
D 13 249 107599 572.22 778 755 186.7

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