ASTROSAT CZTI

Data Quality Report

Orbit 24533

Creation date: 2024-06-27T19:06:59.601115
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/AS1T03_183T01_9000003606_24533cztM0_level2.evt modeM0/AS1T03_183T01_9000003606_24533cztM0_level2_quad_clean.evt
Size (bytes)495,365,760125,254,080
Size472.4 MB 119.5 MB
Events in quadrant A3,445,874883,967
Events in quadrant B3,909,544873,929
Events in quadrant C2,886,070839,056
Events in quadrant D4,377,912801,840

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139591
B0152961
C0121591
D0168811

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A56471001.770852%
B56474047.154241%
C5647911.611475%
D56484017.099858%

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 6922 5648 26 26 0.38% 0.46%
B 6922 5648 231 231 3.34% 4.09%
C 6922 5648 0 0 0.00% 0.00%
D 6923 5649 318 318 4.59% 5.63%

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 14 111 527999 3561.52 753 740 148.0
A 4 2 15082 96.88 753 740 148.0
A 13 254 8902 55.13 753 740 148.0
B 3 64 1040248 7811.94 729 715 133.1
B 12 111 15364 110.09 729 715 133.1
B 0 190 14738 105.38 729 715 133.1
C 14 238 115736 713.06 706 713 161.3
C 2 16 9377 53.71 706 713 161.3
C 13 61 4924 26.11 706 713 161.3
D 1 52 1473345 8570.67 709 689 171.8
D 12 218 188305 1091.9 709 689 171.8
D 8 195 34923 199.24 709 689 171.8

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