ASTROSAT CZTI

Data Quality Report

Orbit 42147

Creation date: 2024-06-27T22:37:32.100623
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/AS1C07_001T11_9000005760_42147cztM0_level2.fits modeM0/AS1C07_001T11_9000005760_42147cztM0_level2_quad_clean.evt
Size (bytes)356,952,96094,723,200
Size340.4 MB 90.3 MB
Events in quadrant A3,469,658625,199
Events in quadrant B2,873,355645,238
Events in quadrant C2,702,710624,383
Events in quadrant D3,704,036557,099

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137372
B0127662
C0119413
D0151642

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5952621.041667%
B5952290.487231%
C595120.033608%
D59512323.898504%

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 7265 5953 35 35 0.48% 0.59%
B 7265 5953 12 12 0.17% 0.20%
C 7264 5952 0 0 0.00% 0.00%
D 7264 5952 209 209 2.88% 3.51%

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 629273 4797.69 637 622 131.0
A 15 223 248584 1892.38 637 622 131.0
A 12 189 68401 517.27 637 622 131.0
B 15 33 186279 1505.54 636 616 123.3
B 0 229 79014 635.73 636 616 123.3
B 3 112 48945 391.9 636 616 123.3
C 15 214 252144 1720.68 624 626 146.2
C 15 159 6495 40.15 624 626 146.2
C 12 249 5105 30.64 624 626 146.2
D 13 249 519346 3439.16 614 594 150.8
D 1 52 159913 1056.24 614 594 150.8
D 5 32 130237 859.49 614 594 150.8

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