ASTROSAT CZTI

Data Quality Report

Orbit 23611

Creation date: 2024-06-27T18:56:48.001813
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_178T01_9000003488_23611cztM0_level2.evt modeM0/AS1T03_178T01_9000003488_23611cztM0_level2_quad_clean.evt
Size (bytes)614,393,28078,727,680
Size585.9 MB 75.1 MB
Events in quadrant A3,563,091496,391
Events in quadrant B7,320,517415,005
Events in quadrant C3,696,933488,032
Events in quadrant D3,536,654481,246

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151422
B0264748
C0153082
D0153412

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72161922.660754%
B7216175524.320953%
C72162793.866408%
D72161702.355876%

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 9046 7216 0 0 0.00% 0.00%
B 9045 7215 1118 1118 12.36% 15.50%
C 9046 7216 0 0 0.00% 0.00%
D 9046 7216 1 1 0.01% 0.01%

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 13 254 11210 55.47 924 903 185.8
A 3 137 8416 40.44 924 903 185.8
A 0 226 7536 35.7 924 903 185.8
B 3 64 4069326 25981.56 810 789 156.6
B 7 219 30894 192.25 810 789 156.6
B 12 111 19143 117.21 810 789 156.6
C 14 238 141728 668.41 898 904 210.7
C 0 239 33964 156.92 898 904 210.7
C 10 23 6472 26.43 898 904 210.7
D 9 68 44306 196.47 911 884 221.0
D 1 52 35428 156.3 911 884 221.0
D 2 234 28309 124.09 911 884 221.0

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