ASTROSAT CZTI

Data Quality Report

Orbit 27359

Creation date: 2024-06-27T19:39:19.363553
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/AS1A09_038T14_9000003930_27359cztM0_level2.evt modeM0/AS1A09_038T14_9000003930_27359cztM0_level2_quad_clean.evt
Size (bytes)137,848,32028,471,680
Size131.5 MB 27.2 MB
Events in quadrant A887,942187,749
Events in quadrant B891,829190,894
Events in quadrant C1,275,739178,598
Events in quadrant D1,003,457181,885

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A035670
B035990
C048110
D040310

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1664150.901442%
B1663160.962117%
C166320912.567649%
D1663110.661455%

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 1664 1664 0 0 0.00% 0.00%
B 1663 1663 0 0 0.00% 0.00%
C 1663 1663 137 137 8.24% 8.24%
D 1663 1663 5 5 0.30% 0.30%

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 8 192 4605 93.39 228 223 46.9
A 13 254 2734 53.51 228 223 46.9
A 0 226 1996 37.78 228 223 46.9
B 12 111 4904 107.79 224 218 43.5
B 11 111 4429 96.86 224 218 43.5
B 15 33 4109 89.5 224 218 43.5
C 2 16 443862 9325.21 200 201 47.6
C 14 238 32776 684.69 200 201 47.6
C 15 208 13228 273.81 200 201 47.6
D 10 0 97477 1765.2 221 216 55.1
D 1 52 44261 799.38 221 216 55.1
D 2 250 13438 239.97 221 216 55.1

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