ASTROSAT CZTI

Data Quality Report

Orbit 19119

Creation date: 2024-06-27T17:59:15.778309
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/AS1A05_046T01_9000002838_19119cztM0_level2.evt modeM0/AS1A05_046T01_9000002838_19119cztM0_level2_quad_clean.evt
Size (bytes)513,509,76095,808,960
Size489.7 MB 91.4 MB
Events in quadrant A3,094,187626,745
Events in quadrant B3,311,652645,231
Events in quadrant C3,168,288623,192
Events in quadrant D5,562,448578,794

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130851
B0138602
C0131851
D0208261

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6124350.571522%
B6124530.865447%
C6124610.996081%
D61244276.972567%

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 7389 6125 2 2 0.03% 0.03%
B 7389 6125 3 3 0.04% 0.05%
C 7389 6125 0 0 0.00% 0.00%
D 7389 6124 330 330 4.47% 5.39%

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 4 2 16408 97.26 797 784 160.6
A 11 29 7659 42.8 797 784 160.6
A 0 226 6970 38.51 797 784 160.6
B 3 112 47235 307.38 805 787 151.1
B 10 245 39016 252.98 805 787 151.1
B 0 197 33602 217.16 805 787 151.1
C 14 238 120741 663.8 776 784 180.7
C 3 233 16295 85.83 776 784 180.7
C 0 207 6455 31.38 776 784 180.7
D 7 238 2176036 11782.58 759 739 184.6
D 12 218 265397 1433.53 759 739 184.6
D 11 176 167161 901.43 759 739 184.6

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