ASTROSAT CZTI

Data Quality Report

Orbit 24148

Creation date: 2024-06-27T19:02:46.126257
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/AS1A07_047T01_9000003572_24148cztM0_level2.evt modeM0/AS1A07_047T01_9000003572_24148cztM0_level2_quad_clean.evt
Size (bytes)161,481,60045,048,960
Size154.0 MB 43.0 MB
Events in quadrant A1,104,061304,624
Events in quadrant B1,140,839302,977
Events in quadrant C1,157,072291,435
Events in quadrant D1,321,964291,299

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0480
B0480
C0480
D0480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A049370
B050810
C051920
D055320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A241410.041425%
B2414281.159901%
C2414351.449876%
D2415200.828157%

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 2414 2414 0 0 0.00% 0.00%
B 2414 2414 24 24 0.99% 0.99%
C 2414 2414 23 23 0.95% 0.95%
D 2415 2415 29 29 1.20% 1.20%

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 3 1 49496 876.98 273 267 56.1
A 13 254 4012 66.71 273 267 56.1
A 0 226 2468 39.21 273 267 56.1
B 0 245 69599 1302.74 267 262 53.2
B 4 52 8767 159.8 267 262 53.2
B 0 190 8448 153.8 267 262 53.2
C 2 16 80867 1355.32 251 251 59.5
C 0 207 41163 687.82 251 251 59.5
C 14 238 40482 676.37 251 251 59.5
D 1 52 149240 2312.37 260 252 64.4
D 8 195 61437 949.62 260 252 64.4
D 7 238 59409 918.15 260 252 64.4

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