ASTROSAT CZTI

Data Quality Report

Orbit 43410

Creation date: 2024-06-27T22:51:39.273229
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_018T01_9000005874_43410cztM0_level2.fits modeM0/AS1A12_018T01_9000005874_43410cztM0_level2_quad_clean.evt
Size (bytes)1,059,969,600244,863,360
Size1010.9 MB 233.5 MB
Events in quadrant A9,590,2491,655,194
Events in quadrant B7,889,5191,713,537
Events in quadrant C7,332,7091,589,937
Events in quadrant D13,210,4121,372,491

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0378044
B0338104
C0319884
D0500214

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440
B0450
C0450
D0450

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03200
B03200
C03200
D03200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A156813972.531726%
B156811050.669600%
C15681340.216823%
D1568012888.214286%

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 19887 15684 299 299 1.50% 1.91%
B 19887 15684 53 53 0.27% 0.34%
C 19887 15684 26 26 0.13% 0.17%
D 19886 15683 1321 1321 6.64% 8.42%

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 1645900 4849.45 1665 1630 339.1
A 15 237 1301329 3833.2 1665 1630 339.1
A 15 222 83457 241.33 1665 1630 339.1
B 0 189 554345 1756.41 1673 1627 314.7
B 0 186 233506 736.86 1673 1627 314.7
B 0 245 191303 602.74 1673 1627 314.7
C 15 214 645222 1685.56 1636 1645 381.8
C 3 233 186490 484.12 1636 1645 381.8
C 14 254 96676 248.89 1636 1645 381.8
D 1 52 3714905 9650.94 1587 1541 384.8
D 2 16 936190 2429.13 1587 1541 384.8
D 1 47 910956 2363.55 1587 1541 384.8

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