ASTROSAT CZTI

Data Quality Report

Orbit 13510

Creation date: 2024-06-27T16:41:53.773795
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_103T01_9000001988_13510cztM0_level2.evt modeM0/AS1A04_103T01_9000001988_13510cztM0_level2_quad_clean.evt
Size (bytes)120,476,16014,238,720
Size114.9 MB 13.6 MB
Events in quadrant A824,82979,328
Events in quadrant B1,036,29080,680
Events in quadrant C871,72179,514
Events in quadrant D807,46276,161

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A033721
B041461
C034861
D033801

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1549140.903809%
B1549503.227889%
C1549100.645578%
D154940.258231%

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 1865 1551 0 0 0.00% 0.00%
B 1865 1551 7 7 0.38% 0.45%
C 1865 1551 0 0 0.00% 0.00%
D 1865 1551 1 1 0.05% 0.06%

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 8 15 6968 147.1 212 207 46.0
A 0 226 2023 39.51 212 207 46.0
A 12 194 1634 31.05 212 207 46.0
B 3 64 145817 3353.71 211 205 43.4
B 4 142 48097 1103.04 211 205 43.4
B 3 209 7386 165.39 211 205 43.4
C 3 233 70694 1418.78 203 203 49.7
C 10 223 6797 132.72 203 203 49.7
C 13 61 1459 25.28 203 203 49.7
D 14 35 17633 342.12 202 195 51.0
D 8 195 7417 141.69 202 195 51.0
D 9 85 7400 141.36 202 195 51.0

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