ASTROSAT CZTI

Data Quality Report

Orbit 31033

Creation date: 2024-06-27T20:22:32.390617
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/AS1A10_071T56_9000004484_31033cztM0_level2.evt modeM0/AS1A10_071T56_9000004484_31033cztM0_level2_quad_clean.evt
Size (bytes)646,473,60095,662,080
Size616.5 MB 91.2 MB
Events in quadrant A3,437,690645,219
Events in quadrant B5,455,744644,919
Events in quadrant C3,467,504611,426
Events in quadrant D6,799,150562,363

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141782
B0203612
C0142222
D0242384

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6203540.870547%
B62031742.805094%
C62031923.095276%
D62025919.529184%

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 7498 6203 0 0 0.00% 0.00%
B 7498 6203 31 31 0.41% 0.50%
C 7498 6203 17 17 0.23% 0.27%
D 7497 6202 442 442 5.90% 7.13%

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 11 47 184432 1089.48 843 829 168.5
A 13 254 12767 70.84 843 829 168.5
A 3 137 7818 41.47 843 829 168.5
B 6 159 1802138 11579.41 833 814 155.6
B 0 155 118410 755.94 833 814 155.6
B 4 52 99504 634.41 833 814 155.6
C 0 10 132985 710.55 802 809 186.0
C 14 238 131328 701.65 802 809 186.0
C 1 16 23965 124.48 802 809 186.0
D 13 174 3034582 16146.2 795 777 187.9
D 8 195 531716 2825.71 795 777 187.9
D 1 52 87644 462.31 795 777 187.9

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