ASTROSAT CZTI

Data Quality Report

Orbit 03324

Creation date: 2024-06-27T14:27:35.287343
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/AS1G05_246T01_9000000450_03324cztM0_level2.evt modeM0/AS1G05_246T01_9000000450_03324cztM0_level2_quad_clean.evt
Size (bytes)1,205,429,760195,321,600
Size1.1 GB 186.3 MB
Events in quadrant A8,072,7901,177,744
Events in quadrant B10,570,8551,183,848
Events in quadrant C8,146,0671,181,765
Events in quadrant D8,502,3131,134,573

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0368525
B0434384
C0369736
D0387224

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03620
B03620
C03620
D03620

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0270

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A179661330.740287%
B179662691.497273%
C179651190.662399%
D179662211.230101%

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 20446 17969 3 3 0.01% 0.02%
B 20446 17969 69 69 0.34% 0.38%
C 20446 17969 20 20 0.10% 0.11%
D 20446 17969 123 123 0.60% 0.68%

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 0 118 96152 221.36 2061 2011 425.3
A 0 226 30341 66.61 2061 2011 425.3
A 12 194 21736 46.38 2061 2011 425.3
B 15 204 1703476 4155.83 2092 2041 409.4
B 5 70 401070 974.65 2092 2041 409.4
B 0 229 127089 305.44 2092 2041 409.4
C 9 54 89956 185.82 2017 2027 473.2
C 1 192 69008 141.55 2017 2027 473.2
C 6 80 37349 74.64 2017 2027 473.2
D 13 223 552955 1146.37 1996 1938 480.7
D 13 239 181329 373.22 1996 1938 480.7
D 14 34 56728 113.99 1996 1938 480.7

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