ASTROSAT CZTI

Data Quality Report

Orbit 38047

Creation date: 2024-06-27T21:47:46.127185
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/AS1A11_044T01_9000005360_38047cztM0_level2.fits modeM0/AS1A11_044T01_9000005360_38047cztM0_level2_quad_clean.evt
Size (bytes)227,730,24064,264,320
Size217.2 MB 61.3 MB
Events in quadrant A1,909,026429,805
Events in quadrant B2,010,691437,431
Events in quadrant C1,863,541426,878
Events in quadrant D2,352,593385,988

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0780
B0780
C0780
D0780

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A079202
B083981
C077501
D094691

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A375780.212936%
B3757411.091296%
C3757150.399255%
D37571133.007719%

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 5100 3758 4 4 0.08% 0.11%
B 5100 3758 24 24 0.47% 0.64%
C 5100 3758 12 12 0.24% 0.32%
D 5100 3758 100 100 1.96% 2.66%

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 234738 2706.18 423 414 86.6
A 7 3 10588 117.5 423 414 86.6
A 12 189 8504 93.43 423 414 86.6
B 4 171 126060 1536.37 423 411 81.8
B 5 200 49078 595.08 423 411 81.8
B 0 213 40630 491.78 423 411 81.8
C 15 214 155713 1566.36 417 419 99.1
C 1 23 45556 455.27 417 419 99.1
C 3 233 26786 265.95 417 419 99.1
D 12 227 203919 2022.54 411 400 100.6
D 2 250 155589 1542.24 411 400 100.6
D 1 52 119101 1179.63 411 400 100.6

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