ASTROSAT CZTI

Data Quality Report

Orbit 01316

Creation date: 2024-06-27T14:10:52.349886
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/AS1G04_002T02_9000000230_01316cztM0_level2.evt modeM0/AS1G04_002T02_9000000230_01316cztM0_level2_quad_clean.evt
Size (bytes)1,071,650,880103,936,320
Size1022.0 MB 99.1 MB
Events in quadrant A8,272,659674,583
Events in quadrant B8,345,896693,388
Events in quadrant C7,651,656681,282
Events in quadrant D7,752,272643,363

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0292253
B0293972
C0274002
D0276942

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65261181.808152%
B6526330.505670%
C652690.137910%
D65262513.846154%

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 7821 6527 461 461 5.89% 7.06%
B 7821 6527 370 370 4.73% 5.67%
C 7821 6527 145 145 1.85% 2.22%
D 7821 6527 551 551 7.05% 8.44%

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 4 32 846408 1842.04 1929 1943 458.4
A 11 79 8797 14.95 1929 1943 458.4
A 12 243 8231 13.72 1929 1943 458.4
B 0 182 222276 465.91 2037 2051 472.7
B 8 4 178592 373.49 2037 2051 472.7
B 6 53 128353 267.2 2037 2051 472.7
C 15 241 326864 637.72 1852 1915 509.5
C 9 52 44585 83.74 1852 1915 509.5
C 3 111 20027 35.54 1852 1915 509.5
D 10 84 826388 1552.7 1734 1793 531.1
D 1 83 240871 450.18 1734 1793 531.1
D 15 13 131869 244.93 1734 1793 531.1

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