ASTROSAT CZTI

Data Quality Report

Orbit 42130

Creation date: 2024-06-27T22:37:20.216327
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_088T19_9000005754_42130cztM0_level2.fits modeM0/AS1A12_088T19_9000005754_42130cztM0_level2_quad_clean.evt
Size (bytes)336,758,40087,658,560
Size321.2 MB 83.6 MB
Events in quadrant A2,880,023594,229
Events in quadrant B2,494,732612,937
Events in quadrant C2,539,798575,848
Events in quadrant D4,132,754495,556

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0300
C0300
D0300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0116512
B0111532
C0108372
D0160865

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5369110.204880%
B5369140.260756%
C536960.111753%
D53684277.954545%

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 7042 5370 2 2 0.03% 0.04%
B 7042 5370 2 2 0.03% 0.04%
C 7042 5370 0 0 0.00% 0.00%
D 7041 5369 383 383 5.44% 7.13%

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 535566 4324.27 597 583 123.7
A 15 223 23803 187.69 597 583 123.7
A 13 6 10899 83.38 597 583 123.7
B 3 112 79139 667.32 596 579 117.7
B 4 81 23388 193.75 596 579 117.7
B 15 85 20471 168.97 596 579 117.7
C 15 214 224781 1630.42 584 586 137.5
C 8 79 13180 91.59 584 586 137.5
C 7 247 11556 79.78 584 586 137.5
D 13 249 939190 6762.15 562 545 138.8
D 12 6 406193 2922.35 562 545 138.8
D 1 52 237254 1705.29 562 545 138.8

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