ASTROSAT CZTI

Data Quality Report

Orbit 03326

Creation date: 2024-06-27T14:27:36.296148
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/AS1G05_246T01_9000000450_03326cztM0_level2.evt modeM0/AS1G05_246T01_9000000450_03326cztM0_level2_quad_clean.evt
Size (bytes)501,900,48082,491,840
Size478.6 MB 78.7 MB
Events in quadrant A3,349,977499,636
Events in quadrant B4,302,963507,424
Events in quadrant C3,473,247506,566
Events in quadrant D3,584,088482,004

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148963
B0177482
C0151522
D0158372

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7216610.845344%
B72161081.496674%
C7216741.025499%
D7216961.330377%

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 9316 7218 4 4 0.04% 0.06%
B 9316 7218 6 6 0.06% 0.08%
C 9316 7218 18 18 0.19% 0.25%
D 9316 7218 47 47 0.50% 0.65%

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 0 118 35028 192.83 857 837 177.3
A 0 226 12096 63.5 857 837 177.3
A 12 194 8881 45.37 857 837 177.3
B 15 204 791107 4712.8 870 849 167.7
B 0 229 59638 350.6 870 849 167.7
B 14 167 50417 295.6 870 849 167.7
C 9 54 119339 603.02 839 844 196.5
C 1 192 25844 127.22 839 844 196.5
C 6 80 22894 112.21 839 844 196.5
D 13 223 310981 1535.26 831 808 202.0
D 13 239 50435 245.64 831 808 202.0
D 14 34 23535 112.49 831 808 202.0

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