ASTROSAT CZTI

Data Quality Report

Orbit 06666

Creation date: 2024-06-27T15:10:02.884310
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/AS1A02_103T01_9000000904_06666cztM0_level2.evt modeM0/AS1A02_103T01_9000000904_06666cztM0_level2_quad_clean.evt
Size (bytes)1,055,874,240134,349,120
Size1007.0 MB 128.1 MB
Events in quadrant A5,469,873840,163
Events in quadrant B5,572,264850,412
Events in quadrant C7,244,197829,225
Events in quadrant D12,904,557742,433

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0242261
B0242211
C0293011
D0462471

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02380
B02380
C02380
D02380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A116432362.026969%
B116431711.468694%
C116431571.348450%
D11643243320.896676%

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 12103 11644 0 0 0.00% 0.00%
B 12103 11644 11 11 0.09% 0.09%
C 12103 11644 3 3 0.02% 0.03%
D 12103 11644 1916 1916 15.83% 16.45%

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 14 111 188861 685.65 1339 1308 273.5
A 15 239 62042 222.03 1339 1308 273.5
A 8 15 30895 108.16 1339 1308 273.5
B 0 214 68083 254.94 1353 1319 261.9
B 4 80 53652 199.83 1353 1319 261.9
B 4 81 48149 178.82 1353 1319 261.9
C 9 247 2142287 7064.09 1300 1305 303.1
C 8 128 13078 38.84 1300 1305 303.1
C 13 61 10430 30.11 1300 1305 303.1
D 2 33 3916440 13495.2 1193 1156 290.1
D 2 63 2218814 7643.82 1193 1156 290.1
D 13 169 1022426 3520.11 1193 1156 290.1

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