ASTROSAT CZTI

Data Quality Report

Orbit 15604

Creation date: 2024-06-27T17:11:01.107857
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/AS1A04_037T01_9000002312_15604cztM0_level2.evt modeM0/AS1A04_037T01_9000002312_15604cztM0_level2_quad_clean.evt
Size (bytes)436,086,72083,036,160
Size415.9 MB 79.2 MB
Events in quadrant A3,303,172530,957
Events in quadrant B3,360,812539,741
Events in quadrant C3,097,673513,144
Events in quadrant D3,034,977509,018

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132452
B0134551
C0126021
D0126361

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6034721.193238%
B6034741.226384%
C6034761.259529%
D6034430.712628%

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 7350 6036 19 19 0.26% 0.31%
B 7350 6035 4 4 0.05% 0.07%
C 7350 6036 0 0 0.00% 0.00%
D 7350 6036 6 6 0.08% 0.10%

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 0 253 241543 1518.95 794 777 158.5
A 0 226 7452 42.11 794 777 158.5
A 12 194 5939 32.57 794 777 158.5
B 4 251 216653 1459.23 781 762 147.9
B 15 201 31541 208.04 781 762 147.9
B 4 173 27025 177.51 781 762 147.9
C 14 238 116170 663.55 753 760 173.9
C 3 233 27180 151.9 753 760 173.9
C 7 247 7486 38.67 753 760 173.9
D 5 51 27701 142.26 779 758 189.4
D 2 234 26347 135.11 779 758 189.4
D 10 70 19021 96.43 779 758 189.4

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