ASTROSAT CZTI

Data Quality Report

Orbit 47155

Creation date: 2024-06-27T23:30:11.511786
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_071T07_9000006290_47155cztM0_level2.fits modeM0/AS1A13_071T07_9000006290_47155cztM0_level2_quad_clean.evt
Size (bytes)391,317,12098,012,160
Size373.2 MB 93.5 MB
Events in quadrant A5,670,851652,499
Events in quadrant B2,874,479681,759
Events in quadrant C2,675,950640,528
Events in quadrant D2,810,230585,252

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01190
C01200
D01190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020896188
B01268159
C01245993
D01299667

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58161472.527510%
B5844731.249144%
C5836360.616861%
D58401031.763699%

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 7093 5864 25 25 0.35% 0.43%
B 7093 5868 34 34 0.48% 0.58%
C 7094 5870 31 31 0.44% 0.53%
D 7094 5871 98 98 1.38% 1.67%

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 3097814 23537.7 637 624 131.6
A 15 235 35268 263.28 637 624 131.6
A 9 191 32074 239.01 637 624 131.6
B 5 255 165151 1332.72 642 623 123.5
B 0 200 40777 325.26 642 623 123.5
B 0 190 31532 250.37 642 623 123.5
C 14 254 167424 1155.14 619 621 144.4
C 15 208 47568 325.12 619 621 144.4
C 12 2 27152 183.73 619 621 144.4
D 1 232 242931 1582.47 616 596 153.1
D 5 171 78921 511.47 616 596 153.1
D 5 32 32983 211.49 616 596 153.1

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