ASTROSAT CZTI

Data Quality Report

Orbit 28224

Creation date: 2024-06-27T19:49:21.728624
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/AS1C05_019T04_9000004074_28224cztM0_level2.evt modeM0/AS1C05_019T04_9000004074_28224cztM0_level2_quad_clean.evt
Size (bytes)523,751,040104,584,320
Size499.5 MB 99.7 MB
Events in quadrant A3,437,112687,856
Events in quadrant B3,819,113704,785
Events in quadrant C3,298,585680,574
Events in quadrant D4,869,322643,864

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143670
B0156950
C0141170
D0188880

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6451420.651062%
B6451861.333127%
C6452961.487911%
D64523996.184129%

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 7671 6452 2 2 0.03% 0.03%
B 7671 6451 17 17 0.22% 0.26%
C 7672 6453 0 0 0.00% 0.00%
D 7672 6453 286 286 3.73% 4.43%

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 16 253000 1582.31 813 800 159.4
A 12 194 42054 258.83 813 800 159.4
A 13 254 10568 61.28 813 800 159.4
B 10 245 581529 3807.67 815 796 152.5
B 12 111 18314 114.86 815 796 152.5
B 0 183 17055 106.6 815 796 152.5
C 14 238 130621 704.11 795 802 184.4
C 3 233 45568 242.8 795 802 184.4
C 1 16 19648 102.22 795 802 184.4
D 1 52 1267525 6970.44 775 753 181.7
D 2 250 454006 2494.04 775 753 181.7
D 8 195 80948 441.27 775 753 181.7

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