ASTROSAT CZTI

Data Quality Report

Orbit 23552

Creation date: 2024-06-27T18:53:44.207386
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/AS1A07_138T09_9000003458_23552cztM0_level2.evt modeM0/AS1A07_138T09_9000003458_23552cztM0_level2_quad_clean.evt
Size (bytes)175,305,60035,271,360
Size167.2 MB 33.6 MB
Events in quadrant A1,212,876226,658
Events in quadrant B1,343,653228,894
Events in quadrant C1,278,087220,716
Events in quadrant D1,308,326217,851

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0546
B0544
C0546
D0544

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05400341
B05818339
C05582325
D05774355

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2408572.367110%
B2413582.403647%
C2422552.270851%
D2419281.157503%

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 3749 2457 0 0 0.00% 0.00%
B 3749 2454 0 0 0.00% 0.00%
C 3748 2464 0 0 0.00% 0.00%
D 3749 2467 3 3 0.08% 0.12%

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 4157 59.42 314 307 64.8
A 3 137 2793 38.37 314 307 64.8
A 0 226 2705 37.01 314 307 64.8
B 3 64 94842 1543.54 313 304 61.2
B 0 189 13404 213.89 313 304 61.2
B 12 111 7288 114.03 313 304 61.2
C 14 238 47548 669.17 300 301 70.6
C 7 247 33275 467.02 300 301 70.6
C 10 91 20511 286.24 300 301 70.6
D 9 85 71111 949.42 305 295 74.6
D 1 52 68738 917.61 305 295 74.6
D 2 234 9996 130.06 305 295 74.6

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