ASTROSAT CZTI

Data Quality Report

Orbit 43312

Creation date: 2024-06-27T22:50:29.461421
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/AS1A12_088T25_9000005866_43312cztM0_level2.fits modeM0/AS1A12_088T25_9000005866_43312cztM0_level2_quad_clean.evt
Size (bytes)321,140,16090,167,040
Size306.3 MB 86.0 MB
Events in quadrant A3,597,247595,700
Events in quadrant B2,677,191628,667
Events in quadrant C2,559,635594,523
Events in quadrant D2,640,764540,545

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140572
B0114372
C0107432
D0116312

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0350
B0350
C0350
D0350

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A52951873.531634%
B5296280.528701%
C529640.075529%
D5296510.962991%

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 8788 5297 164 164 1.87% 3.10%
B 8789 5298 22 22 0.25% 0.42%
C 8789 5298 1 1 0.01% 0.02%
D 8789 5298 47 47 0.53% 0.89%

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 15 237 624029 5043.59 593 581 123.6
A 10 83 565213 4567.77 593 581 123.6
A 15 222 76912 617.5 593 581 123.6
B 5 172 102936 867.12 599 581 118.0
B 0 189 96620 813.62 599 581 118.0
B 5 255 48557 406.44 599 581 118.0
C 15 214 222299 1578.27 587 588 140.5
C 14 254 30748 214.7 587 588 140.5
C 3 233 9799 65.57 587 588 140.5
D 13 249 129339 897.79 579 561 143.4
D 1 52 79461 550.06 579 561 143.4
D 1 47 71293 493.12 579 561 143.4

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