ASTROSAT CZTI

Data Quality Report

Orbit 05716

Creation date: 2024-06-27T14:58:18.099534
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_098T01_9000000736_05716cztM0_level2.evt modeM0/AS1A02_098T01_9000000736_05716cztM0_level2_quad_clean.evt
Size (bytes)516,481,92085,757,760
Size492.6 MB 81.8 MB
Events in quadrant A3,335,669537,807
Events in quadrant B3,693,391542,793
Events in quadrant C3,761,609542,717
Events in quadrant D4,402,601512,910

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140123
B0149202
C0153562
D0174442

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65991392.106380%
B65991532.318533%
C65992874.349144%
D65993625.485680%

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 9079 6600 0 0 0.00% 0.00%
B 9079 6599 3 3 0.03% 0.05%
C 9079 6600 123 123 1.35% 1.86%
D 9079 6600 184 184 2.03% 2.79%

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 12 194 8392 43.14 865 848 174.9
A 0 226 8374 43.04 865 848 174.9
A 13 14 4491 20.83 865 848 174.9
B 15 204 212856 1296.49 865 847 163.5
B 11 51 54241 326.52 865 847 163.5
B 4 80 30725 182.71 865 847 163.5
C 9 16 536690 2823.33 824 829 189.8
C 14 67 7372 34.47 824 829 189.8
C 13 61 6484 29.79 824 829 189.8
D 2 152 927857 4588.87 833 809 202.0
D 12 233 150639 741.65 833 809 202.0
D 8 195 39354 190.79 833 809 202.0

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