ASTROSAT CZTI

Data Quality Report

Orbit 25967

Creation date: 2024-06-27T19:23:21.360339
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/AS1A07_068T01_9000003760_25967cztM0_level2.evt modeM0/AS1A07_068T01_9000003760_25967cztM0_level2_quad_clean.evt
Size (bytes)514,823,040128,704,320
Size491.0 MB 122.7 MB
Events in quadrant A3,457,054898,020
Events in quadrant B3,418,323891,357
Events in quadrant C3,465,175838,212
Events in quadrant D4,826,150833,560

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142920
B0141140
C0143670
D0186620

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6268951.515635%
B62671111.771182%
C62681492.377154%
D62683285.232929%

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 7543 6269 0 0 0.00% 0.00%
B 7542 6268 2 2 0.03% 0.03%
C 7543 6269 0 0 0.00% 0.00%
D 7543 6269 255 255 3.38% 4.07%

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 6 16 10875 56.84 893 879 175.9
A 13 254 9561 49.37 893 879 175.9
A 0 226 7768 39.17 893 879 175.9
B 0 230 19586 117.22 862 843 159.9
B 12 111 18768 112.1 862 843 159.9
B 11 111 17133 101.88 862 843 159.9
C 14 238 137952 716.94 831 837 191.2
C 7 238 60079 309.76 831 837 191.2
C 3 233 31203 158.78 831 837 191.2
D 1 52 1577709 7832.52 854 836 201.3
D 2 234 24820 119.13 854 836 201.3
D 2 120 8602 38.57 854 836 201.3

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