ASTROSAT CZTI

Data Quality Report

Orbit 19096

Creation date: 2024-06-27T17:59:01.559731
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/AS1T03_098T01_9000002836_19096cztM0_level2.evt modeM0/AS1T03_098T01_9000002836_19096cztM0_level2_quad_clean.evt
Size (bytes)572,964,480101,194,560
Size546.4 MB 96.5 MB
Events in quadrant A3,419,003648,202
Events in quadrant B3,829,237662,039
Events in quadrant C3,554,869641,768
Events in quadrant D6,053,688604,016

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151731
B0162441
C0154211
D0232801

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72982563.507810%
B72992883.945746%
C72992543.479929%
D729991112.481162%

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 7348 7299 0 0 0.00% 0.00%
B 7349 7300 26 26 0.35% 0.36%
C 7349 7300 3 3 0.04% 0.04%
D 7349 7300 544 544 7.40% 7.45%

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 0 226 7886 38.61 886 866 181.8
A 13 254 7415 36.02 886 866 181.8
A 3 137 7069 34.12 886 866 181.8
B 10 245 196141 1141.82 882 859 171.0
B 3 112 76778 443.9 882 859 171.0
B 0 189 33785 192.52 882 859 171.0
C 14 238 130445 648.63 846 850 199.8
C 7 220 46779 229.88 846 850 199.8
C 0 207 35300 172.42 846 850 199.8
D 7 238 2021211 9903.36 830 805 204.0
D 1 52 460447 2253.01 830 805 204.0
D 11 176 337861 1652.14 830 805 204.0

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