ASTROSAT CZTI

Data Quality Report

Orbit 43373

Creation date: 2024-06-27T22:51:11.020481
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/AS1A09_143T01_9000005870_43373cztM0_level2.fits modeM0/AS1A09_143T01_9000005870_43373cztM0_level2_quad_clean.evt
Size (bytes)292,504,32090,823,680
Size279.0 MB 86.6 MB
Events in quadrant A2,868,707607,153
Events in quadrant B2,357,751629,586
Events in quadrant C2,489,641605,803
Events in quadrant D2,706,166543,781

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0340
C0340
D0340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0116542
B0106282
C0105592
D0119612

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5196370.712086%
B5196140.269438%
C519640.076982%
D5196821.578137%

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 7319 5197 21 21 0.29% 0.40%
B 7319 5197 5 5 0.07% 0.10%
C 7319 5197 0 0 0.00% 0.00%
D 7319 5197 91 91 1.24% 1.75%

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 561150 4759.99 569 557 117.8
A 15 237 91814 774.86 569 557 117.8
A 13 6 10581 85.11 569 557 117.8
B 0 189 43910 394.49 572 556 109.9
B 5 255 33459 299.39 572 556 109.9
B 12 111 13879 121.23 572 556 109.9
C 15 214 214450 1645.57 559 563 130.0
C 3 233 69606 531.19 559 563 130.0
C 15 111 14197 104.9 559 563 130.0
D 12 218 167596 1240.75 548 531 134.6
D 12 6 146932 1087.28 548 531 134.6
D 13 249 145501 1076.66 548 531 134.6

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