ASTROSAT CZTI

Data Quality Report

Orbit 08412

Creation date: 2024-06-27T15:32:17.070452
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/AS1A03_025T07_9000001182_08412cztM0_level2.evt modeM0/AS1A03_025T07_9000001182_08412cztM0_level2_quad_clean.evt
Size (bytes)477,259,20086,492,160
Size455.1 MB 82.5 MB
Events in quadrant A3,426,388534,738
Events in quadrant B3,534,415541,816
Events in quadrant C3,292,603527,842
Events in quadrant D3,709,604512,090

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149553
B0150862
C0147832
D0160532

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72131822.523222%
B72131872.592541%
C72131321.830029%
D72131842.550950%

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 7853 7214 1 1 0.01% 0.01%
B 7853 7213 3 3 0.04% 0.04%
C 7853 7215 0 0 0.00% 0.00%
D 7853 7213 32 32 0.41% 0.44%

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 13 251 31570 172.12 870 850 178.5
A 5 16 18370 98.16 870 850 178.5
A 14 111 17393 92.69 870 850 178.5
B 0 214 101064 599.48 871 849 167.2
B 4 173 18706 106.82 871 849 167.2
B 12 111 18496 105.56 871 849 167.2
C 13 61 6214 27.24 843 844 197.2
C 8 222 3545 13.7 843 844 197.2
C 3 202 2153 6.64 843 844 197.2
D 13 122 112413 510.78 835 814 218.5
D 7 71 102453 465.2 835 814 218.5
D 2 14 70136 317.28 835 814 218.5

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