ASTROSAT CZTI

Data Quality Report

Orbit 43381

Creation date: 2024-06-27T22:51:16.637438
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/AS1C07_001T10_9000005872_43381cztM0_level2.fits modeM0/AS1C07_001T10_9000005872_43381cztM0_level2_quad_clean.evt
Size (bytes)923,711,040246,369,600
Size880.9 MB 235.0 MB
Events in quadrant A8,988,5511,646,104
Events in quadrant B7,143,4801,698,935
Events in quadrant C8,229,8411,588,694
Events in quadrant D8,629,3991,455,028

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03180
B03180
C03180
D03180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0410
B0410
C0410
D0410

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0357294
B0319464
C0341134
D0372135

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A155062231.438153%
B15507520.335332%
C15507560.361127%
D155063512.263640%

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 19684 15509 145 145 0.74% 0.93%
B 19685 15510 29 29 0.15% 0.19%
C 19685 15510 40 40 0.20% 0.26%
D 19684 15509 318 318 1.62% 2.05%

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 1626346 4854.13 1652 1618 334.7
A 15 237 665495 1983.44 1652 1618 334.7
A 13 248 218863 649.05 1652 1618 334.7
B 3 112 218289 690.27 1656 1609 313.9
B 0 186 143526 452.1 1656 1609 313.9
B 0 189 62921 195.32 1656 1609 313.9
C 3 233 1026733 2728.3 1616 1620 375.7
C 15 214 645589 1713.9 1616 1620 375.7
C 14 254 87257 227.92 1616 1620 375.7
D 12 233 932684 2356.97 1612 1561 395.1
D 1 52 583899 1474.08 1612 1561 395.1
D 13 249 290259 730.79 1612 1561 395.1

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