ASTROSAT CZTI

Data Quality Report

Orbit 45315

Creation date: 2024-06-27T23:12:17.822250
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/AS1A13_047T01_9000006068_45315cztM0_level2.fits modeM0/AS1A13_047T01_9000006068_45315cztM0_level2_quad_clean.evt
Size (bytes)279,656,64066,107,520
Size266.7 MB 63.0 MB
Events in quadrant A3,164,243445,626
Events in quadrant B1,874,802473,204
Events in quadrant C2,796,737419,984
Events in quadrant D2,225,914400,160

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0740
B0742
C0740
D0740

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01195840
B0790514
C01081653
D0911635

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3720601.612903%
B3725140.375839%
C37202496.693548%
D3722701.880709%

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 3731 3731 26 26 0.70% 0.70%
B 3731 3731 12 12 0.32% 0.32%
C 3731 3728 250 250 6.70% 6.71%
D 3731 3729 69 69 1.85% 1.85%

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 10 83 1457739 16183.85 437 429 90.0
A 0 243 9314 98.67 437 429 90.0
A 13 254 4927 49.95 437 429 90.0
B 5 32 55737 644.44 442 430 85.8
B 15 201 12908 145.39 442 430 85.8
B 0 189 11080 124.09 442 430 85.8
C 14 254 954364 9594.18 420 421 99.4
C 12 2 190356 1910.25 420 421 99.4
C 0 207 6075 56.86 420 421 99.4
D 13 249 244597 2267.49 428 416 107.7
D 11 224 115190 1065.8 428 416 107.7
D 13 171 79850 737.63 428 416 107.7

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