ASTROSAT CZTI

Data Quality Report

Orbit 48335

Creation date: 2024-09-05T00:58:55.972772
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/AS1A13_029T01_9000006422_48335cztM0_level2.fits modeM0/AS1A13_029T01_9000006422_48335cztM0_level2_quad_clean.evt
Size (bytes)601,119,360127,460,160
Size573.3 MB 121.6 MB
Events in quadrant A8,579,213834,130
Events in quadrant B5,050,141849,068
Events in quadrant C3,737,462844,465
Events in quadrant D4,255,913768,466

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0311057
B0206281
C0171641
D0183852

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A81084725.821411%
B81115066.238442%
C81111211.491801%
D81101932.379778%

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 8395 8109 15 15 0.18% 0.18%
B 8396 8112 163 163 1.94% 2.01%
C 8396 8113 2 2 0.02% 0.02%
D 8395 8112 55 55 0.66% 0.68%

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 10 83 4891683 24831.43 935 915 197.0
A 13 248 54354 271.32 935 915 197.0
A 13 254 16981 81.57 935 915 197.0
B 5 255 793945 4266.23 931 898 185.9
B 0 200 235370 1261.35 931 898 185.9
B 4 21 172650 923.95 931 898 185.9
C 15 208 38482 171.39 928 932 219.1
C 12 2 37064 164.92 928 932 219.1
C 0 207 25579 112.5 928 932 219.1
D 13 29 185584 781.22 929 900 236.4
D 2 120 102156 428.32 929 900 236.4
D 12 33 75121 313.96 929 900 236.4

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