ASTROSAT CZTI

Data Quality Report

Orbit 04611

Creation date: 2024-06-27T14:44:31.039065
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_154T01_9000000576_04611cztM0_level2.evt modeM0/AS1G05_154T01_9000000576_04611cztM0_level2_quad_clean.evt
Size (bytes)979,381,440121,449,600
Size934.0 MB 115.8 MB
Events in quadrant A5,723,812766,533
Events in quadrant B6,089,509764,979
Events in quadrant C5,692,060767,597
Events in quadrant D11,357,603562,128

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A033494
B033898
C033797
D0338102

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0194
B0194
C0183
D0171

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0343349278
B03576510036
C0340049494
D0520009932

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A117851831.552821%
B117732351.996093%
C11797860.728999%
D11787256021.718843%

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 20089 11964 29 29 0.14% 0.24%
B 20089 11942 64 64 0.32% 0.54%
C 20089 11968 0 0 0.00% 0.00%
D 20089 11984 2093 2093 10.42% 17.46%

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 195809 690.16 1373 1341 281.8
A 8 15 151991 534.65 1373 1341 281.8
A 0 226 32035 108.93 1373 1341 281.8
B 14 167 185117 689.7 1382 1349 266.4
B 10 16 179640 669.14 1382 1349 266.4
B 15 204 117911 437.47 1382 1349 266.4
C 14 48 352069 1117.86 1333 1335 313.8
C 7 247 59894 186.64 1333 1335 313.8
C 9 54 48929 151.69 1333 1335 313.8
D 8 112 6030905 21498.21 1155 1121 280.5
D 13 235 463180 1647.4 1155 1121 280.5
D 12 217 104103 367.17 1155 1121 280.5

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