ASTROSAT CZTI

Data Quality Report

Orbit 23319

Creation date: 2024-06-27T18:52:44.819147
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_148T02_9000003444_23319cztM0_level2.evt modeM0/AS1A07_148T02_9000003444_23319cztM0_level2_quad_clean.evt
Size (bytes)274,616,64026,029,440
Size261.9 MB 24.8 MB
Events in quadrant A1,757,602147,717
Events in quadrant B1,749,971149,144
Events in quadrant C2,101,482137,599
Events in quadrant D2,495,512132,126

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0620
B0620
C0620
D0620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A071361
B070891
C082541
D094551

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3105250.805153%
B3105260.837359%
C31051163.735910%
D31052879.243156%

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 3105 3105 0 0 0.00% 0.00%
B 3105 3105 0 0 0.00% 0.00%
C 3105 3105 46 46 1.48% 1.48%
D 3105 3105 255 255 8.21% 8.21%

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 6 16 7738 80.54 454 446 90.5
A 13 254 5046 50.81 454 446 90.5
A 0 226 4156 40.98 454 446 90.5
B 12 111 8995 103.58 442 435 82.6
B 0 190 8185 93.78 442 435 82.6
B 11 111 8142 93.26 442 435 82.6
C 10 9 351544 3617.34 422 427 97.1
C 14 238 69604 712.69 422 427 97.1
C 7 247 22271 225.04 422 427 97.1
D 1 52 452410 4472.92 414 404 101.1
D 13 104 191255 1888.61 414 404 101.1
D 7 238 181397 1791.05 414 404 101.1

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