ASTROSAT CZTI

Data Quality Report

Orbit 22047

Creation date: 2024-06-27T18:35:52.954115
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_047T09_9000003260_22047cztM0_level2.evt modeM0/AS1A07_047T09_9000003260_22047cztM0_level2_quad_clean.evt
Size (bytes)189,656,64055,454,400
Size180.9 MB 52.9 MB
Events in quadrant A1,261,978379,634
Events in quadrant B1,338,922383,921
Events in quadrant C1,255,903368,405
Events in quadrant D1,703,531356,184

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A054590
B056860
C054590
D068520

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0520
B0520
C0520
D0520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A267230.112275%
B267360.224467%
C2673120.448934%
D26731104.115226%

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 2672 2672 0 0 0.00% 0.00%
B 2673 2673 3 3 0.11% 0.11%
C 2673 2673 0 0 0.00% 0.00%
D 2673 2673 134 134 5.01% 5.01%

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 4797 66.77 327 322 67.0
A 0 226 2810 37.13 327 322 67.0
A 3 137 2536 33.04 327 322 67.0
B 3 64 39446 626.73 324 317 62.4
B 0 190 16546 259.94 324 317 62.4
B 12 111 6602 100.67 324 317 62.4
C 14 238 49473 694.01 304 306 70.8
C 10 22 19108 265.4 304 306 70.8
C 13 61 2140 25.89 304 306 70.8
D 13 249 398269 5406.27 306 298 73.6
D 12 233 42777 577.06 306 298 73.6
D 13 172 27121 364.38 306 298 73.6

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