ASTROSAT CZTI

Data Quality Report

Orbit 10021

Creation date: 2024-06-27T15:53:51.378414
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/AS1G07_022T02_9000001434_10021cztM0_level2.evt modeM0/AS1G07_022T02_9000001434_10021cztM0_level2_quad_clean.evt
Size (bytes)167,374,08028,416,960
Size159.6 MB 27.1 MB
Events in quadrant A1,544,096208,214
Events in quadrant B1,522,411205,339
Events in quadrant C1,417,106218,083
Events in quadrant D392,34728,748

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02548118714
B02617619385
C02503218306
D02809726052

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A063
B065
C074
D065

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250174
B0250182
C0250192
D0249167

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A329480.242866%
B3259160.490948%
C335050.149254%
D101400.000000%

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 12823 4507 0 0 0.00% 0.00%
B 12806 4457 2 2 0.02% 0.04%
C 12817 4536 0 0 0.00% 0.00%
D 1227 1165 1 1 0.08% 0.09%

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 15 239 82795 1095.12 361 353 75.3
A 8 15 48628 641.26 361 353 75.3
A 13 251 21952 286.91 361 353 75.3
B 4 81 51384 722.48 359 351 70.6
B 4 239 27184 379.88 359 351 70.6
B 5 255 17243 239.14 359 351 70.6
C 14 234 3229 33.42 362 364 85.7
C 13 61 2620 26.31 362 364 85.7
C 8 222 2033 19.46 362 364 85.7
D 1 52 5309 204.88 98 95 25.4
D 2 16 4787 184.37 98 95 25.4
D 2 234 4259 163.62 98 95 25.4

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