ASTROSAT CZTI

Data Quality Report

Orbit 09842

Creation date: 2024-06-27T15:51:20.012109
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/AS1A03_134T01_9000001400_09842cztM0_level2.evt modeM0/AS1A03_134T01_9000001400_09842cztM0_level2_quad_clean.evt
Size (bytes)586,172,16097,948,800
Size559.0 MB 93.4 MB
Events in quadrant A3,863,929608,635
Events in quadrant B4,098,064626,891
Events in quadrant C3,805,153606,979
Events in quadrant D5,432,210557,138

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A017471723
B018120786
C017457686
D0227351103

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01744
B01744
C01748
D01744

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0263
B0262
C0262
D0261

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8140390.479115%
B8149871.067616%
C8163250.306260%
D81133163.894983%

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 11134 8294 0 0 0.00% 0.00%
B 11134 8289 16 16 0.14% 0.19%
C 11134 8302 1 1 0.01% 0.01%
D 11134 8255 226 226 2.03% 2.74%

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 13 248 15080 70.72 1000 983 199.3
A 0 226 9216 41.3 1000 983 199.3
A 12 194 7823 34.31 1000 983 199.3
B 4 81 111189 588.71 1007 983 187.2
B 0 214 29829 154.09 1007 983 187.2
B 4 173 23813 121.96 1007 983 187.2
C 10 22 19042 81.47 967 975 221.8
C 8 208 8494 33.91 967 975 221.8
C 13 61 7326 28.64 967 975 221.8
D 2 16 989352 4406.71 933 912 224.3
D 1 52 514320 2288.9 933 912 224.3
D 13 104 153893 682.03 933 912 224.3

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