ASTROSAT CZTI

Data Quality Report

Orbit 28009

Creation date: 2024-06-27T19:46:58.841763
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_021T08_9000004042_28009cztM0_level2.evt modeM0/AS1A10_021T08_9000004042_28009cztM0_level2_quad_clean.evt
Size (bytes)540,578,880105,416,640
Size515.5 MB 100.5 MB
Events in quadrant A3,714,947693,322
Events in quadrant B3,597,679716,209
Events in quadrant C3,606,191686,188
Events in quadrant D5,020,181651,410

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149240
B0143060
C0143920
D0191470

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6390721.126761%
B6390961.502347%
C63901221.909233%
D63903194.992175%

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 7710 6390 0 0 0.00% 0.00%
B 7710 6391 0 0 0.00% 0.00%
C 7710 6390 2 2 0.03% 0.03%
D 7710 6390 278 278 3.61% 4.35%

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 0 13 199340 1115.39 902 887 177.9
A 3 1 31180 170.26 902 887 177.9
A 13 254 9846 50.35 902 887 177.9
B 10 245 91927 544.33 892 872 167.3
B 12 111 19672 112.39 892 872 167.3
B 11 111 17700 100.6 892 872 167.3
C 14 238 144333 710.54 874 884 201.9
C 3 233 45328 220.14 874 884 201.9
C 15 208 11442 52.3 874 884 201.9
D 8 195 971367 4797.71 868 851 202.3
D 1 52 418321 2063.75 868 851 202.3
D 2 250 118347 580.84 868 851 202.3

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