ASTROSAT CZTI

Data Quality Report

Orbit 32888

Creation date: 2024-06-27T20:43:08.336058
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/AS1A11_005T05_9000004744_32888cztM0_level2.evt modeM0/AS1A11_005T05_9000004744_32888cztM0_level2_quad_clean.evt
Size (bytes)382,515,84053,953,920
Size364.8 MB 51.5 MB
Events in quadrant A2,088,345352,008
Events in quadrant B2,651,374352,188
Events in quadrant C2,404,275344,666
Events in quadrant D4,148,109281,834

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010111
B010216
C010212
D010113

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0347
B0344
C0367
D0343

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0101311314
B0121301626
C0113561643
D0180082796

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A433050.115473%
B43061443.344171%
C4299882.046988%
D423448511.454889%

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 7115 4501 0 0 0.00% 0.00%
B 7115 4485 85 85 1.19% 1.90%
C 7115 4466 63 63 0.89% 1.41%
D 7115 4424 379 379 5.33% 8.57%

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 7775 67.91 536 526 106.7
A 13 6 5236 44.12 536 526 106.7
A 3 137 4606 38.22 536 526 106.7
B 5 172 390137 3918.55 531 521 99.4
B 0 183 45651 453.89 531 521 99.4
B 0 230 31051 307.05 531 521 99.4
C 0 10 274746 2320.08 514 519 118.2
C 1 241 54081 453.16 514 519 118.2
C 14 67 43594 364.43 514 519 118.2
D 12 218 834711 6960.17 470 460 119.9
D 2 250 595611 4965.35 470 460 119.9
D 8 195 530279 4420.29 470 460 119.9

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