ASTROSAT CZTI

Data Quality Report

Orbit 44014

Creation date: 2024-06-27T22:58:17.851430
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_037T01_9000005930_44014cztM0_level2.fits modeM0/AS1A13_037T01_9000005930_44014cztM0_level2_quad_clean.evt
Size (bytes)254,050,56061,499,520
Size242.3 MB 58.7 MB
Events in quadrant A2,757,032390,369
Events in quadrant B1,902,022420,889
Events in quadrant C2,315,569408,563
Events in quadrant D2,132,133373,819

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0108951
B082172
C093124
D090411

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A38003388.894737%
B37992235.869966%
C37991734.553830%
D37991363.579889%

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 3815 3801 57 57 1.49% 1.50%
B 3815 3801 0 0 0.00% 0.00%
C 3814 3800 58 58 1.52% 1.53%
D 3814 3800 39 39 1.02% 1.03%

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 565978 5827.14 458 446 97.1
A 14 238 381461 3925.91 458 446 97.1
A 7 3 28488 288.94 458 446 97.1
B 4 171 40980 429.78 463 447 94.3
B 12 111 12472 127.5 463 447 94.3
B 11 111 11010 112.0 463 447 94.3
C 15 1 214850 1967.14 456 456 109.0
C 3 233 167685 1534.39 456 456 109.0
C 14 254 139627 1276.94 456 456 109.0
D 13 171 194830 1674.6 453 437 116.1
D 5 235 80047 685.8 453 437 116.1
D 1 52 34994 297.69 453 437 116.1

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