ASTROSAT CZTI

Data Quality Report

Orbit 13183

Creation date: 2024-06-27T16:37:25.508519
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/AS1T02_012T05_9000001954_13183cztM0_level2.evt modeM0/AS1T02_012T05_9000001954_13183cztM0_level2_quad_clean.evt
Size (bytes)434,113,92047,220,480
Size414.0 MB 45.0 MB
Events in quadrant A2,032,370301,016
Events in quadrant B5,981,308238,258
Events in quadrant C1,955,043303,576
Events in quadrant D2,883,900281,854

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A089211
B0207071
C088281
D0114861

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0880
B0880
C0880
D0880

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4325100.231214%
B4325199046.011561%
C4325100.231214%
D43251764.069364%

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 5506 4327 0 0 0.00% 0.00%
B 5506 4327 1318 1318 23.94% 30.46%
C 5506 4327 0 0 0.00% 0.00%
D 5506 4327 134 134 2.43% 3.10%

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 12 189 51177 484.15 509 498 104.7
A 4 2 7915 70.86 509 498 104.7
A 1 162 6816 60.36 509 498 104.7
B 4 239 4508210 65010.68 356 347 69.3
B 0 189 30615 436.51 356 347 69.3
B 0 214 18252 258.22 356 347 69.3
C 15 208 3705 27.47 500 502 116.6
C 13 61 3657 27.06 500 502 116.6
C 3 202 1209 6.06 500 502 116.6
D 13 122 866458 7238.89 490 475 119.6
D 1 52 70876 588.49 490 475 119.6
D 12 222 41741 344.95 490 475 119.6

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