ASTROSAT CZTI

Data Quality Report

Orbit 29324

Creation date: 2024-06-27T20:02:43.664717
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/AS1A10_050T03_9000004216_29324cztM0_level2.evt modeM0/AS1A10_050T03_9000004216_29324cztM0_level2_quad_clean.evt
Size (bytes)672,413,76091,895,040
Size641.3 MB 87.6 MB
Events in quadrant A3,140,955615,116
Events in quadrant B4,430,174617,531
Events in quadrant C3,366,187604,605
Events in quadrant D9,003,208508,809

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130371
B0172531
C0137571
D0308291

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6258270.431448%
B62594787.637003%
C6259761.214251%
D6259273143.633168%

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 7433 6259 0 0 0.00% 0.00%
B 7434 6260 248 248 3.34% 3.96%
C 7434 6260 0 0 0.00% 0.00%
D 7434 6260 2395 2395 32.22% 38.26%

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 13 254 13002 74.73 812 797 163.3
A 3 137 7206 39.24 812 797 163.3
A 0 226 6883 37.26 812 797 163.3
B 10 245 1131985 7677.11 784 766 147.3
B 0 190 149716 1010.86 784 766 147.3
B 5 255 38388 255.32 784 766 147.3
C 14 238 130237 701.01 789 796 184.6
C 3 233 125494 675.33 789 796 184.6
C 2 114 15431 79.26 789 796 184.6
D 12 33 6053444 42745.59 593 578 141.6
D 8 195 304539 2146.59 593 578 141.6
D 1 52 222975 1570.58 593 578 141.6

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