ASTROSAT CZTI

Data Quality Report

Orbit 02488

Creation date: 2024-06-27T14:18:34.277269
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/AS1T01_046T01_9000000372_02488cztM0_level2.fits modeM0/AS1T01_046T01_9000000372_02488cztM0_level2_quad_clean.evt
Size (bytes)117,564,48039,525,120
Size112.1 MB 37.7 MB
Events in quadrant A1,059,557266,561
Events in quadrant B1,059,463273,148
Events in quadrant C1,027,264259,502
Events in quadrant D1,031,618238,629

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05294650
B05242662
C05227655
D05607946

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0526
B0526
C0526
D0524

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2205321.451247%
B2202291.316985%
C2202150.681199%
D2185130.594966%

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 3616 2272 9 9 0.25% 0.40%
B 3580 2268 0 0 0.00% 0.00%
C 3547 2264 0 0 0.00% 0.00%
D 3555 2248 5 5 0.14% 0.22%

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 0 199 24199 427.83 267 261 56.0
A 0 226 5178 87.88 267 261 56.0
A 14 63 3752 62.39 267 261 56.0
B 5 6 5657 99.1 273 267 54.4
B 12 111 3848 65.84 273 267 54.4
B 11 111 3033 50.85 273 267 54.4
C 13 61 2401 34.62 260 261 61.8
C 10 65 2319 33.3 260 261 61.8
C 12 4 1960 27.49 260 261 61.8
D 7 67 33892 551.88 253 246 61.0
D 2 14 19711 319.28 253 246 61.0
D 2 184 10021 160.34 253 246 61.0

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