ASTROSAT CZTI

Data Quality Report

Orbit 08103

Creation date: 2024-06-27T15:27:58.185414
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/AS1A02_055T01_9000001114_08103cztM0_level2.evt modeM0/AS1A02_055T01_9000001114_08103cztM0_level2_quad_clean.evt
Size (bytes)546,382,08066,144,960
Size521.1 MB 63.1 MB
Events in quadrant A3,262,972394,970
Events in quadrant B3,346,670401,283
Events in quadrant C3,256,369402,850
Events in quadrant D6,237,334347,248

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140803
B0141072
C0139482
D0229592

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6542971.482727%
B6542931.421584%
C6542831.268725%
D6542124419.015592%

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 7697 6542 0 0 0.00% 0.00%
B 7697 6542 4 4 0.05% 0.06%
C 7697 6542 0 0 0.00% 0.00%
D 7697 6542 1115 1115 14.49% 17.04%

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 8 15 65569 387.54 830 813 167.1
A 0 226 7938 42.64 830 813 167.1
A 12 194 7524 40.16 830 813 167.1
B 11 51 38180 236.88 831 812 157.8
B 0 214 27709 170.5 831 812 157.8
B 10 16 23650 144.77 831 812 157.8
C 1 16 104484 559.44 808 810 185.3
C 13 61 6169 28.92 808 810 185.3
C 3 202 2089 6.9 808 810 185.3
D 1 52 2675087 14653.49 730 710 182.5
D 12 227 446008 2439.88 730 710 182.5
D 5 233 324255 1772.77 730 710 182.5

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