ASTROSAT CZTI

Data Quality Report

Orbit 07362

Creation date: 2024-06-27T15:18:56.715433
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/AS1G06_157T02_9000001008_07362cztM0_level2.evt modeM0/AS1G06_157T02_9000001008_07362cztM0_level2_quad_clean.evt
Size (bytes)460,169,28065,566,080
Size438.9 MB 62.5 MB
Events in quadrant A3,221,934378,785
Events in quadrant B3,339,635383,570
Events in quadrant C3,296,000377,934
Events in quadrant D3,612,344366,571

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141463
B0143652
C0141462
D0154582

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6859680.991398%
B6859751.093454%
C6859530.772707%
D68591301.895320%

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 7809 6859 0 0 0.00% 0.00%
B 7809 6859 2 2 0.03% 0.03%
C 7809 6859 0 0 0.00% 0.00%
D 7809 6859 53 53 0.68% 0.77%

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 15 239 18515 103.76 832 813 170.6
A 0 226 7922 41.67 832 813 170.6
A 12 194 7492 39.15 832 813 170.6
B 0 214 95788 589.5 834 813 161.1
B 12 111 16032 94.46 834 813 161.1
B 11 111 12859 74.77 834 813 161.1
C 9 68 62296 324.48 810 811 189.5
C 8 229 49708 258.05 810 811 189.5
C 8 128 12869 63.63 810 811 189.5
D 1 52 220231 1103.24 807 780 198.9
D 2 216 219177 1097.94 807 780 198.9
D 2 14 104108 519.46 807 780 198.9

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